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Patent US427457 - HARVEY BROKAW
HARVEY BROKAW
HARVEY BROKAW
› Overview
Abstract
Drawings
Description
Claims
Patent number
: 427457
Issue date
: May 6, 1890
Inventor
:
HARVEY BROKAW
Original Assignee
:
F THREE
Current U.S. Classification
:
292/6
;
292/154
View patent at USPTO
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Drawings