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http://www.google.com.au/patents/US1030399?utm_source=gb-gplus-share
Patent US1030399 - PLANOQRAPH CO
PLANOQRAPH CO
MACHINE FOB CUTTING PUNCHES
Overview
Abstract
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Description
Claims
Patent number
: 1030399
Filing date
: 27 Oct 1910
Issue date
: 25 Jun 1912
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