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http://www.google.com.au/patents/US1569947?utm_source=gb-gplus-share
Patent US1569947 - BUTTRESS
BUTTRESS
JOSEPH A. BUTTBBSS et al
› Overview
Abstract
Drawings
Description
Claims
Patent number
: 1569947
Filing date
: 3 Jul 1922
Issue date
: 19 Jan 1926
Inventors
:
JOSEPH A. BUTTBBSS
,
JOSEPH A. BUTTBBSS
Current U.S. Classification
:
52/673
;
D05/2
;
D25/155
View patent at USPTO
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Referenced by
Citing Patent
Filing date
Issue date
Original Assignee
Title
US4004774
8 Jan 1975
25 Jan 1977
Du Pont of Canada Limited
Coated panel
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