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http://www.google.com.au/patents/US375427?utm_source=gb-gplus-share
Patent US375427 - DENTAL SYRINGE
DENTAL SYRINGE
WILLIAM HENRY RICHARDS et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 375427
Filing date
: 15 Feb 1887
Issue date
: 27 Dec 1887
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