Building units and construction elements – Prefabricated unit – Closure
Patent
1990-03-30
1992-06-30
Largen, James R.
Building units and construction elements
Prefabricated unit
Closure
Patent
active
D03275272
REFERENCES:
patent: D305704 (1990-01-01), Jones et al.
patent: 3458955 (1969-08-01), Brooks
patent: 3486288 (1969-12-01), Pyne
patent: 3878648 (1975-04-01), Marne
patent: 4561210 (1985-12-01), Kvas et al.
patent: 4939880 (1990-07-01), Wang
Walker, Jr. Delton
Walker, Sr. Delton
Bean James L.
Clark Doris
Largen James R.
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