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http://www.google.co.uk/patents/US1814506?utm_source=gb-gplus-share
Patent US1814506 - DAVIS
DAVIS
EOBEET HENRY DAVIS et al
› Overview
Abstract
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Description
Claims
Patent number
: 1814506
Filing date
: 20 Aug 1929
Issue date
: 14 Jul 1931
Inventors
:
EOBEET HENRY DAVIS
,
EOBEET HENRY DAVIS
Current U.S. Classification
:
128/205.17
;
128/205.21
View patent at USPTO
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Drawings
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Drawings