Building units and construction elements – Prefabricated unit – Closure
Patent
1995-11-30
1997-12-23
Clark, Doris
Building units and construction elements
Prefabricated unit
Closure
2502
Patent
active
D03881784
REFERENCES:
patent: D327527 (1992-06-01), Walker, Jr. et al.
patent: 4068433 (1978-01-01), Glover
patent: 4753043 (1988-06-01), Bockwinkel
patent: 4998382 (1991-03-01), Kostos et al.
1993 Sweet's Catalog, section 08400/AMA, center of page 3, model 73 Entrance.
Clark Doris
Saint-Gobain Vitrage
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