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http://www.google.ca/patents/US1491685?utm_source=gb-gplus-share
Patent US1491685 - SCHOOL FURNITURE
SCHOOL FURNITURE
HUBERT C. EICHER et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 1491685
Filing date
: 5 May 1923
Issue date
: 22 Apr 1924
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