Building units and construction elements – Architectural stock material – Extruded shape
Patent
1994-11-10
1995-06-27
Clark, Doris
Building units and construction elements
Architectural stock material
Extruded shape
Patent
active
D03598128
REFERENCES:
patent: 3611666 (1971-10-01), Pogser et al.
patent: 3680937 (1972-08-01), Steeley
patent: 3911622 (1975-10-01), Prohaoka
patent: 4040142 (1977-08-01), Ippolito
patent: 4878267 (1989-11-01), Roach et al.
Clark Doris
Wiggins Macdonald J.
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