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http://www.google.ca/patents/US3677249?utm_source=gb-gplus-share
Patent US3677249 - METHOD OF FORMATION
METHOD OF FORMATION
Darrel D. Kokx et al
› Overview
Abstract
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Description
Claims
Patent number
: 3677249
Filing date
: 29 Sep 1969
Issue date
: 18 Jul 1972
Inventors
:
Darrel D. Kokx
,
Darrel D. Kokx
Current U.S. Classification
:
604/366
;
28/121
View patent at USPTO
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Drawings
Drawings
