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http://www.google.com.au/patents/US2852369?utm_source=gb-gplus-share
Patent US2852369 - EYOLFSON
EYOLFSON
Paul Eyolfson et al
Overview
Abstract
Drawings
Description
Claims
Patent number
: 2852369
Filing date
: 17 Sep 1954
Issue date
: 16 Sep 1958
Plain text
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