Building units and construction elements – Prefabricated unit – Closure
Patent
1994-05-10
1996-01-02
Clark, Doris
Building units and construction elements
Prefabricated unit
Closure
Patent
active
D03658830
REFERENCES:
patent: D213676 (1969-04-01), Bird
patent: D299544 (1989-01-01), Nolan
patent: 2494161 (1950-01-01), Blackman
patent: 4074483 (1978-02-01), Vickstrom
Forbis John T.
Klimek David J.
Clark Doris
Great Lakes Window Inc.
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