Building units and construction elements – Prefabricated unit – Closure
Patent
1995-01-03
1997-03-11
Zarfas, Louis S.
Building units and construction elements
Prefabricated unit
Closure
D25 35
Patent
active
D03784207
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patent: D196968 (1963-11-01), Polhemus
patent: D201071 (1965-06-01), Faubion
patent: D213867 (1969-04-01), Perlman et al.
patent: D237523 (1975-11-01), Johnson et al.
patent: D266105 (1982-09-01), Arrington
patent: D273994 (1984-05-01), Naka
patent: 732275 (1903-06-01), Clark
patent: 984942 (1911-02-01), Leddy
patent: 1803091 (1913-04-01), Bemis
patent: 1841381 (1932-01-01), Price
patent: 3085489 (1963-04-01), Ivy
patent: 3844076 (1974-10-01), Schock
Bilco 1981 Catalog p. 15 May 1981.
Andoll Gregory
Palmer River Products, Inc.
Zarfas Louis S,.
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