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http://www.google.ca/patents/US1225032?utm_source=gb-gplus-share
Patent US1225032 - HOTCHKIN
HOTCHKIN
M. HOTCHKIN et al
› Overview
Abstract
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Description
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Patent number
: 1225032
Filing date
: 2 Jan 1915
Issue date
: 8 May 1917
Inventors
:
M. HOTCHKIN
,
M. HOTCHKIN
Current U.S. Classification
:
362/349
;
362/350
View patent at USPTO
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