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Patent US279274 - WILLIAM R
WILLIAM R
WILLIAM R. PATTERSON et al
› Overview
Abstract
Drawings
Description
Claims
Patent number
: 279274
Filing date
: Feb 20, 1883
Issue date
: Jun 12, 1883
Inventors
:
WILLIAM R. PATTERSON
,
WILLIAM R. PATTERSON
Current U.S. Classification
:
174/94.00S
;
24/127
;
24/130
;
411/531
;
439/808
View patent at USPTO
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Referenced by
Citing Patent
Filing date
Issue date
Original Assignee
Title
US5370487
May 17, 1993
Dec 6, 1994
Tack with a slit
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