Building units and construction elements – Prefabricated unit – Closure
Patent
1995-04-20
1996-07-23
Clark, Doris
Building units and construction elements
Prefabricated unit
Closure
Patent
active
D03721043
REFERENCES:
patent: D179029 (1956-10-01), Nielsen
patent: 4763444 (1988-08-01), Ritchie
patent: 5161328 (1992-11-01), Trave
Clark Doris
Dutton, Jr. Harold H.
Jamison Wm. C. L.
Liebman Diane F.
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