Building units and construction elements – Architectural stock material – Extruded shape
Patent
1990-08-03
1993-02-16
Zarfas, Louis S.
Building units and construction elements
Architectural stock material
Extruded shape
Patent
active
D03333566
REFERENCES:
patent: D243675 (1977-03-01), Dallaire
patent: D307484 (1990-04-01), Westphal et al.
patent: D308421 (1990-06-01), Westphal et al.
patent: D311961 (1990-11-01), Westphal et al.
patent: 4740405 (1988-04-01), Tanaka et al.
Clark Doris
Slocomb Industries
Zarfas Louis S,.
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