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http://www.google.com.au/patents/US1224432?utm_source=gb-gplus-share
Patent US1224432 - CHECKING DEVICE
CHECKING DEVICE
FRANK WEDGE et al
› Overview
Abstract
Drawings
Description
Claims
Patent number
: 1224432
Filing date
: 14 Feb 1916
Issue date
: 1 May 1917
Inventors
:
FRANK WEDGE
,
FRANK WEDGE
Current U.S. Classification
:
40/647
;
24/500
View patent at USPTO
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Referenced by
Citing Patent
Filing date
Issue date
Original Assignee
Title
US4462175
22 Feb 1983
31 Jul 1984
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Drawings
Drawings
