CN1209984A - 带有自动转换机构的地毯吸尘器 - Google Patents
带有自动转换机构的地毯吸尘器 Download PDFInfo
- Publication number
- CN1209984A CN1209984A CN98109656A CN98109656A CN1209984A CN 1209984 A CN1209984 A CN 1209984A CN 98109656 A CN98109656 A CN 98109656A CN 98109656 A CN98109656 A CN 98109656A CN 1209984 A CN1209984 A CN 1209984A
- Authority
- CN
- China
- Prior art keywords
- floor
- valve
- dust catcher
- pump
- turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 title abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 145
- 239000000428 dust Substances 0.000 claims description 113
- 239000012459 cleaning agent Substances 0.000 claims description 55
- 239000012530 fluid Substances 0.000 claims description 41
- 241001417527 Pempheridae Species 0.000 claims description 26
- 238000004891 communication Methods 0.000 claims description 17
- 230000005284 excitation Effects 0.000 claims description 14
- 239000003599 detergent Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000005201 scrubbing Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 description 28
- 239000007788 liquid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000009428 plumbing Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4002—Installations of electric equipment
- A47L11/4008—Arrangements of switches, indicators or the like
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/02—Floor surfacing or polishing machines
- A47L11/20—Floor surfacing or polishing machines combined with vacuum cleaning devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/34—Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
- A47L11/4044—Vacuuming or pick-up tools; Squeegees
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
- A47L5/32—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with means for connecting a hose
Abstract
Description
Claims (58)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US870,804 | 1997-06-06 | ||
US08/870,804 US5983442A (en) | 1997-06-06 | 1997-06-06 | Carpet extractor with automatic conversion |
US870804 | 2010-08-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1209984A true CN1209984A (zh) | 1999-03-10 |
CN1130163C CN1130163C (zh) | 2003-12-10 |
Family
ID=25356099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN98109656A Expired - Lifetime CN1130163C (zh) | 1997-06-06 | 1998-06-05 | 带有自动转换机构的地毯吸尘器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5983442A (zh) |
CN (1) | CN1130163C (zh) |
CA (1) | CA2229682C (zh) |
GB (1) | GB2325850B (zh) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102711577A (zh) * | 2010-09-01 | 2012-10-03 | 创科地板护理技术有限公司 | 用于抽吸清洁机的回收罐 |
CN103188981A (zh) * | 2010-09-01 | 2013-07-03 | 创科地板护理技术有限公司 | 用于将抽吸式清洗机从地面清洗切换到软管清洗的转换机构 |
CN103658083A (zh) * | 2013-11-26 | 2014-03-26 | 苏州欧赛电器有限公司 | 一种立式手持式二合一蒸汽清洁器 |
CN104244793A (zh) * | 2012-08-07 | 2014-12-24 | 卡彻北美股份有限公司 | 具有机械操作的泵的地板清洁工具 |
US9877625B2 (en) | 2012-08-07 | 2018-01-30 | Kärcher North America, Inc. | Floor cleaning tool having a mechanically operated pump |
US9877624B2 (en) | 2012-08-07 | 2018-01-30 | Kärcher North America, Inc. | Floor cleaning tool having a mechanically operated pump |
CN107952712A (zh) * | 2017-11-20 | 2018-04-24 | 上海市青浦区实验中学 | 一种板擦清理机 |
WO2018157697A1 (zh) * | 2017-02-28 | 2018-09-07 | 科沃斯机器人股份有限公司 | 杆式清洗组件及其吸尘器 |
CN109045850A (zh) * | 2018-06-26 | 2018-12-21 | 安徽原上草节能环保科技有限公司 | 一种提高室内空气质量的方法 |
CN109152506A (zh) * | 2016-03-11 | 2019-01-04 | 1A 洗护、清洁和服务有限责任公司 | 新型清洁装置和清洁方法 |
US10188250B2 (en) | 2012-08-07 | 2019-01-29 | Kärcher North America, Inc. | Floor cleaning tool having a mechanically operated pump |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6167587B1 (en) * | 1997-07-09 | 2001-01-02 | Bissell Homecare, Inc. | Upright extraction cleaning machine |
US6041472A (en) * | 1995-11-06 | 2000-03-28 | Bissell Homecare, Inc. | Upright water extraction cleaning machine |
DE69906794D1 (de) * | 1998-12-18 | 2003-05-15 | Dyson Ltd | Staubsauger |
GB2344746A (en) | 1998-12-18 | 2000-06-21 | Notetry Ltd | Vacuum cleaner wherein an alternative air inlet is selected by moving the separating apparatus |
USD431098S (en) * | 1999-01-08 | 2000-09-19 | Royal Appliance Mfg. Co. | Carpet cleaning extractor dirty fluid tank |
US6073300A (en) * | 1999-01-08 | 2000-06-13 | Royal Appliance Mfg. Co. | Valve assembly for carpet extractor |
USD431887S (en) * | 1999-06-04 | 2000-10-10 | The Hoover Company | Carpet extractor lower portion |
US7062816B2 (en) * | 1999-06-14 | 2006-06-20 | Bissell Homecare, Inc. | Surface cleaner with power drive |
US6533871B2 (en) * | 2001-01-12 | 2003-03-18 | Royal Appliance Mfg. Co. | Carpet extractor with dual nozzles for dual brushrolls |
US6775880B2 (en) | 2001-01-17 | 2004-08-17 | Bissell Homecare, Inc. | Protectant application |
US6832409B2 (en) | 2001-09-18 | 2004-12-21 | The Hoover Company | Wet/dry floor cleaning unit and method of cleaning |
US6842942B2 (en) * | 2001-09-18 | 2005-01-18 | The Hoover Company | Nozzle assembly removal arrangement |
US7954200B2 (en) * | 2003-03-25 | 2011-06-07 | The Hoover Company | Constant head device for a cleaning machine |
US7055211B2 (en) * | 2003-04-17 | 2006-06-06 | The Hoover Company | Blocker door for an agitator duct of a vacuum cleaner |
WO2005018402A2 (en) * | 2003-08-22 | 2005-03-03 | Bissell Homecare, Inc. | Wet/dry bare floor cleaner |
CN100593386C (zh) * | 2003-08-22 | 2010-03-10 | 碧洁家庭护理有限公司 | 裸露地板清洁器 |
US7159271B2 (en) | 2003-09-29 | 2007-01-09 | Electrolux Home Care Products Ltd. | Wet extractor cleaning device fluid tank arrangement |
GB0412137D0 (en) * | 2004-05-29 | 2004-06-30 | Hoover Ltd | Vacuum cleaner |
US7363681B2 (en) * | 2004-06-25 | 2008-04-29 | Healthy Gain Investments Ltd. | Suction shut off device for a cleaning apparatus |
US7228591B2 (en) * | 2004-10-08 | 2007-06-12 | Bosses Mark D | Extractor including sonic agitator |
US7228590B2 (en) * | 2004-10-08 | 2007-06-12 | Bosses Mark D | Extractor including sonic agitator |
US7870637B2 (en) * | 2004-12-10 | 2011-01-18 | Techtronic Floor Care Technology Limited | Stacked tank arrangement for a cleaning apparatus |
US20060123586A1 (en) * | 2004-12-10 | 2006-06-15 | Wegelin Jackson W | Extractor stretch hose |
US7657964B2 (en) * | 2004-12-10 | 2010-02-09 | Techtronic Floor Care Technology Limited | Lift off tank handle latch |
GB2449394B (en) * | 2005-02-17 | 2009-04-29 | Bissell Homecare Inc | Surface cleaning apparatus with recovery tank |
ITPD20050078A1 (it) * | 2005-03-16 | 2006-09-17 | Euroflex Srl | Scopa a vapore per la pulizia dei pavimenti con getti di vapore regolabili inferiormente e/o in punta e con miscelazione di detersivo |
US7757340B2 (en) | 2005-03-25 | 2010-07-20 | S.C. Johnson & Son, Inc. | Soft-surface remediation device and method of using same |
US8056182B2 (en) * | 2005-08-30 | 2011-11-15 | Tacony Corporation | Heating system for a portable carpet extractor |
GB0601278D0 (en) * | 2006-01-23 | 2006-03-01 | Creative Consultancy Ltd | Floor cleaning apparatus |
US7877839B2 (en) * | 2006-11-20 | 2011-02-01 | Black & Decker Inc. | Wet and/or dry vacuum with floor collector |
AU2008200975B2 (en) * | 2007-03-05 | 2012-09-27 | Bissell Inc. | Accessory tool for a vacuum cleaner |
GB2462124B (en) * | 2008-07-25 | 2012-07-11 | Hoover Ltd | Vacuum cleaner |
US8370991B2 (en) * | 2010-09-01 | 2013-02-12 | Techtronic Floor Care Technology Limited | Supply tank assembly for an extractor cleaning machine |
USD673155S1 (en) * | 2011-06-16 | 2012-12-25 | Pfu Limited | Scanner |
JP5974710B2 (ja) * | 2012-07-27 | 2016-08-23 | 株式会社Ihi | 異物除去機構 |
ITMO20130141A1 (it) * | 2013-05-20 | 2014-11-21 | T P A Impex Spa | Apparecchiatura per la pulizia di superfici domestiche ed industriali |
US9737187B2 (en) | 2014-02-04 | 2017-08-22 | Techtronic Floor Care Technology Limited | Extractor cleaning machine |
US20150245758A1 (en) | 2014-02-28 | 2015-09-03 | Rug Doctor, LLC | Liquid Extraction Cleaning Device |
US9138119B1 (en) * | 2014-03-13 | 2015-09-22 | Techtronic Industries Co. Ltd. | Air duct for an extractor cleaning machine |
CN107427174A (zh) * | 2015-03-06 | 2017-12-01 | 阿尔弗雷德·凯驰两合公司 | 吸尘器 |
AU2022291569A1 (en) | 2022-01-10 | 2023-07-27 | Bissell Inc. | Surface cleaning apparatus with steam |
Family Cites Families (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US32257A (en) * | 1861-05-07 | Stove | ||
US1217817A (en) * | 1916-04-05 | 1917-02-27 | Homer L Peters | Vacuum-cleaner. |
US1539843A (en) * | 1921-12-01 | 1925-06-02 | Hurley Machine Company | Vacuum cleaner |
US1542262A (en) * | 1922-09-28 | 1925-06-16 | Jr John B Morton | Floor-cleaning machine |
US1936761A (en) * | 1930-12-11 | 1933-11-28 | Hoover Co | Suction cleaner |
US1953944A (en) * | 1931-02-06 | 1934-04-10 | Hoover Co | Suction cleaner |
US1884868A (en) * | 1931-05-27 | 1932-10-25 | Commerce Guardian Trust & Savi | Airway cleaner supporting ledge |
US2070689A (en) * | 1934-06-22 | 1937-02-16 | Hoover Co | Suction cleaner |
US2046684A (en) * | 1934-06-22 | 1936-07-07 | Hoover Co | Suction cleaner |
US2107016A (en) * | 1935-10-26 | 1938-02-01 | Hoover Co | Suction cleaner |
GB470731A (en) * | 1936-10-28 | 1937-08-20 | Electrolux Ab | Improvements in or relating to vacuum cleaners |
US2174560A (en) * | 1936-12-07 | 1939-10-03 | Hoover Co | Suction cleaner |
US2218035A (en) * | 1937-08-09 | 1940-10-15 | Benson Frank Arthur | Suction cleaner |
US2287922A (en) * | 1938-05-09 | 1942-06-30 | Hoover Co | Suction cleaner |
US2372033A (en) * | 1943-01-13 | 1945-03-20 | Du Pont | Suction cleaning apparatus |
US2747215A (en) * | 1951-04-03 | 1956-05-29 | Hoover Co | Converter controlling handle position in suction cleaner |
US2720186A (en) * | 1954-01-25 | 1955-10-11 | Reliance Electric & Eng Co | Actuator-position indicator device |
US3300806A (en) * | 1964-08-05 | 1967-01-31 | Hoover Co | Suction cleaner |
US3253295A (en) * | 1964-04-27 | 1966-05-31 | Westinghouse Electric Corp | Brush roll speed indicator |
US3438081A (en) * | 1967-07-07 | 1969-04-15 | Sunbeam Corp | Vacuum cleaner |
SE321062B (zh) * | 1968-09-17 | 1970-02-23 | Electrolux Ab | |
US4376322A (en) * | 1979-09-21 | 1983-03-15 | National Union Electric Corporation | Suction cleaner |
US4334337A (en) * | 1980-03-28 | 1982-06-15 | Shop-Vac Corporation | Compact wet-dry electric vacuum cleaner |
US4392271A (en) * | 1981-09-21 | 1983-07-12 | National Union Electric Corporation | Electric vacuum cleaner with window for viewing belt |
US4571772A (en) * | 1982-12-27 | 1986-02-25 | Prototypes, Ltd. | Upright vacuum cleaning appliance |
US4573236A (en) * | 1983-07-08 | 1986-03-04 | Prototypes, Ltd. | Vacuum cleaning appliances |
US4614003A (en) * | 1985-04-01 | 1986-09-30 | Whirlpool Corporation | Pile height setting display for vacuum cleaner |
US4809397A (en) * | 1986-01-21 | 1989-03-07 | Edic | Rug and carpet cleaner |
US4811450A (en) * | 1987-08-27 | 1989-03-14 | Ryobi Motor Products Corp. | Vacuum cleaner with improved auxiliary cleaning |
DE4000374A1 (de) * | 1989-01-31 | 1990-08-02 | Duepro Ag | Mehrzweck-saugduese |
ATE101792T1 (de) * | 1989-12-01 | 1994-03-15 | William Hendrick Williams | Nass- und trockensauger. |
DE4105012C2 (de) * | 1991-02-19 | 1994-09-29 | Fedag Romanshorn Fa | Staubsaugermundstück |
US5243734A (en) * | 1991-06-24 | 1993-09-14 | The Hoover Company | Cleaner conversion valve |
US5247720A (en) * | 1992-01-10 | 1993-09-28 | Royal Appliance Mfg. Co. | Valving structure for air passageways of floor nozzle and auxiliary inlet of a vacuum cleaner |
US5222276A (en) * | 1992-01-10 | 1993-06-29 | Ryobi Motor Products Corp. | Vacuum cleaner for on floor and off floor suction cleaning |
DE4204749C1 (de) * | 1992-02-18 | 1993-10-28 | Fedag Romanshorn Fa | Saugreinigungswerkzeug für Naß- und Trockensauger |
US5355549A (en) * | 1992-03-13 | 1994-10-18 | Amway Corporation | Diverter valve for vacuum cleaner apparatus |
GB9207291D0 (en) * | 1992-04-02 | 1992-05-13 | Emaco Ltd | Improvement in and relating to vacuum cleaners |
US5351361A (en) * | 1993-01-08 | 1994-10-04 | The Hoover Company | Conversion valve arrangement |
CA2108876C (en) * | 1993-01-25 | 1996-04-09 | Arnold L. Sepke | Vacuum cleaner with illuminated belt view |
US5715566A (en) * | 1993-02-12 | 1998-02-10 | Bissell Inc. | Cleaning machine with a detachable cleaning module |
US5373598A (en) * | 1993-06-14 | 1994-12-20 | The Hoover Company | Cleaner with performance indicator |
US5493752A (en) * | 1994-01-14 | 1996-02-27 | The Hoover Company | Upright carpet and upholstery extractor |
US5477586A (en) * | 1994-07-19 | 1995-12-26 | White Consolidated Industries, Inc. | Vacuum cleaner with accessory shutoff |
US5551120A (en) * | 1995-02-17 | 1996-09-03 | Royal Appliance Mfg. Co. | Conversion assembly for vacuum cleaners |
US5560074A (en) * | 1995-08-04 | 1996-10-01 | Bissell Inc. | Convertible vacuum cleaner |
US5784755A (en) * | 1996-01-18 | 1998-07-28 | White Consolidated Industries, Inc. | Wet extractor system |
-
1997
- 1997-06-06 US US08/870,804 patent/US5983442A/en not_active Expired - Lifetime
-
1998
- 1998-02-16 CA CA002229682A patent/CA2229682C/en not_active Expired - Fee Related
- 1998-05-20 GB GB9810894A patent/GB2325850B/en not_active Expired - Lifetime
- 1998-06-05 CN CN98109656A patent/CN1130163C/zh not_active Expired - Lifetime
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102711577B (zh) * | 2010-09-01 | 2015-02-18 | 创科地板护理技术有限公司 | 用于抽吸清洁机的回收罐 |
CN103188981A (zh) * | 2010-09-01 | 2013-07-03 | 创科地板护理技术有限公司 | 用于将抽吸式清洗机从地面清洗切换到软管清洗的转换机构 |
CN102711577A (zh) * | 2010-09-01 | 2012-10-03 | 创科地板护理技术有限公司 | 用于抽吸清洁机的回收罐 |
CN103188981B (zh) * | 2010-09-01 | 2016-01-06 | 创科地板护理技术有限公司 | 用于将抽吸式清洗机从地面清洗切换到软管清洗的转换机构 |
CN104244793B (zh) * | 2012-08-07 | 2017-02-22 | 卡彻北美股份有限公司 | 具有机械操作的泵的地板清洁工具 |
CN104244793A (zh) * | 2012-08-07 | 2014-12-24 | 卡彻北美股份有限公司 | 具有机械操作的泵的地板清洁工具 |
US9877625B2 (en) | 2012-08-07 | 2018-01-30 | Kärcher North America, Inc. | Floor cleaning tool having a mechanically operated pump |
US9877624B2 (en) | 2012-08-07 | 2018-01-30 | Kärcher North America, Inc. | Floor cleaning tool having a mechanically operated pump |
US10188250B2 (en) | 2012-08-07 | 2019-01-29 | Kärcher North America, Inc. | Floor cleaning tool having a mechanically operated pump |
CN103658083A (zh) * | 2013-11-26 | 2014-03-26 | 苏州欧赛电器有限公司 | 一种立式手持式二合一蒸汽清洁器 |
CN109152506A (zh) * | 2016-03-11 | 2019-01-04 | 1A 洗护、清洁和服务有限责任公司 | 新型清洁装置和清洁方法 |
WO2018157697A1 (zh) * | 2017-02-28 | 2018-09-07 | 科沃斯机器人股份有限公司 | 杆式清洗组件及其吸尘器 |
CN107952712A (zh) * | 2017-11-20 | 2018-04-24 | 上海市青浦区实验中学 | 一种板擦清理机 |
CN109045850A (zh) * | 2018-06-26 | 2018-12-21 | 安徽原上草节能环保科技有限公司 | 一种提高室内空气质量的方法 |
CN109045850B (zh) * | 2018-06-26 | 2020-12-01 | 安徽原上草节能环保科技有限公司 | 一种提高室内空气质量的方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1130163C (zh) | 2003-12-10 |
CA2229682A1 (en) | 1998-12-06 |
GB9810894D0 (en) | 1998-07-22 |
US5983442A (en) | 1999-11-16 |
CA2229682C (en) | 2002-02-12 |
GB2325850B (en) | 2001-03-07 |
GB2325850A (en) | 1998-12-09 |
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