Search
Images
Maps
Play
YouTube
News
Gmail
Drive
More
»
Advanced Patent Search
|
Web History
|
Sign in
Advanced Patent Search
Patents
www.google.com
http://www.google.com/patents/US307031?utm_source=gb-gplus-share
Patent US307031 - THOMAS A
THOMAS A
THOMAS A. EDISON et al
› Overview
Abstract
Drawings
Description
Claims
Patent number
: 307031
Issue date
: 1884
Inventors
:
THOMAS A. EDISON
,
THOMAS A. EDISON
Current U.S. Classification
:
324/106
;
177/DIG.6
;
307/650
;
313/233
;
313/244
;
313/310
;
313/325
;
324/72
;
324/96
;
324/123.00R
View patent at USPTO
Search USPTO Assignment Database
Referenced by
Citing Patent
Filing date
Issue date
Original Assignee
Title
US5406070
Dec 16, 1993
Apr 11, 1995
International Business Machines Corporation
Method and apparatus for scanning an object and correcting image data using concurrently generated illumination data
Drawings
Drawings
