Glass door

Details Glass door Glass door

1990-11-09

1995-01-31

Clark, Doris

Building units and construction elements

Prefabricated unit

Closure

Patent

active

D03550370

REFERENCES:
patent: D146554 (1947-04-01), Butterworth
patent: D218809 (1970-09-01), Horgan, Jr.
patent: D267274 (1982-12-01), Horgan, Jr.
patent: D267275 (1982-12-01), Horgan, Jr.
patent: D289201 (1987-04-01), Weeden et al.
patent: 2219683 (1940-10-01), Erath
patent: 3267628 (1966-08-01), Seery
patent: 3377748 (1968-04-01), Kellerhals
patent: 3653156 (1972-04-01), Horgan, Jr.
patent: 3827183 (1974-08-01), Zimmerman et al.
patent: 4956954 (1990-09-01), Horgan, Jr.
Blumcraft of Pittsburgh .COPYRGT.1985 pp. 1 and 2.

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