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http://www.google.ca/patents/US1719428?utm_source=gb-gplus-share
Patent US1719428 - SYRINGE
SYRINGE
W. FRIEDMAN et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 1719428
Filing date
: 21 May 1927
Issue date
: 2 Jul 1929
Plain text
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