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Patent US787950 - DIVISION DEVICE FOR CENTRIFUGAL SEPARATORS AND MEANS FOR CLEANING SAME
DIVISION DEVICE FOR CENTRIFUGAL SEPARATORS AND MEANS FOR CLEANING SAME
DAVID TOWNSEND SHARPLES et al
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Patent number
: 787950
Filing date
: Dec 26, 1902
Issue date
: Apr 25, 1905
Inventors
:
DAVID TOWNSEND SHARPLES
,
DAVID TOWNSEND SHARPLES
Current U.S. Classification
:
494/75
;
134/166.00R
;
494/27
;
494/64
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US6152155
Nov 30, 1998
Nov 28, 2000
Filter cleaning device
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