Building units and construction elements – Prefabricated unit – Closure
Patent
1994-07-14
1996-02-20
Clark, Doris
Building units and construction elements
Prefabricated unit
Closure
Patent
active
D03673278
REFERENCES:
patent: D202177 (1965-09-01), Blau et al.
patent: 2679666 (1954-06-01), Burchill
patent: 3375609 (1968-04-01), Sconzo
patent: 5221363 (1993-06-01), Gillard
D'Onofrio Dorothy L.
D'Onofrio, Jr. Gennaro A.
Clark Doris
Prescott Charles J.
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