Building units and construction elements – Architectural stock material – Extruded shape
Patent
1990-05-11
1994-07-05
Word, A. Hugo
Building units and construction elements
Architectural stock material
Extruded shape
Patent
active
D03485250
REFERENCES:
patent: D169234 (1953-03-01), Woodworth
patent: D208547 (1967-09-01), Van Houten
patent: D243730 (1977-03-01), Koenig et al.
patent: D262404 (1981-12-01), Bittner
patent: D292737 (1987-11-01), Keisinger et al.
patent: D313478 (1991-01-01), Whitney
patent: 3423897 (1969-01-01), Baron, Jr.
patent: 4084361 (1978-04-01), Aspaas
Dallaire Dominique
Dallaire Raymond
Clark Doris
Dallaire Industries Ltd.
Hall James D.
Word A. Hugo
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