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http://www.google.com/patents/US1001062?utm_source=gb-gplus-share
Patent US1001062 - PLANOQRAPH CO
PLANOQRAPH CO
SHEDDY MITCHELL
Overview
Abstract
Drawings
Description
Claims
Patent number
: 1001062
Filing date
: Feb 27, 1911
Issue date
: Aug 22, 1911
Plain text
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