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http://www.google.com.au/patents/US2302020?utm_source=gb-gplus-share
Patent US2302020 - DECORATIVE TILE
DECORATIVE TILE
Emile Frederick et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 2302020
Filing date
: 19 May 1937
Issue date
: 17 Nov 1942
Plain text
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