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http://www.google.com.au/patents/US1327495?utm_source=gb-gplus-share
Patent US1327495 - SMITH
SMITH
DAVID J. SMITH et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 1327495
Filing date
: 29 Nov 1918
Issue date
: 6 Jan 1920
Plain text
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