Building units and construction elements – Prefabricated unit – Closure
Patent
1989-11-21
1992-08-18
Word, A. Hugo
Building units and construction elements
Prefabricated unit
Closure
Patent
active
D03287955
REFERENCES:
patent: D247047 (1978-01-01), Damiana
patent: D250603 (1978-12-01), Roesch
patent: 4300440 (1981-11-01), Holter
patent: 4466221 (1984-08-01), Couture
patent: 4682454 (1987-07-01), Simpson et al.
patent: 4930275 (1990-06-01), Verby et al.
patent: 4986039 (1991-01-01), Weisner
1981 Sweets Catalog Section 7.8/M. page of Extreme bottom left side of page silouette illustration.
Hozumi Daisuke
Yamaguchi Kenji
Clark Doris
Sanwa Shutter Corporation
Word A. Hugo
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