Building units and construction elements – Prefabricated unit – Closure
Patent
1996-03-01
1997-06-24
Clark, Doris
Building units and construction elements
Prefabricated unit
Closure
2502
Patent
active
D03802752
REFERENCES:
patent: D288854 (1987-03-01), Stollman
patent: 4394805 (1983-07-01), Napper
patent: 5007200 (1991-04-01), Londono
patent: 5339567 (1994-08-01), Pierpont et al.
Clark Doris
Dutton, Jr. Harold H.
Jamison W. Charles L.
Liebman Diane F.
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