Building units and construction elements – Prefabricated unit – Closure
Patent
1995-10-19
1997-09-30
Clark, Doris
Building units and construction elements
Prefabricated unit
Closure
2502
Patent
active
D03844218
REFERENCES:
patent: 197583 (1877-11-01), Allen
patent: D288131 (1987-02-01), Margro
patent: 3290823 (1966-12-01), Kumoto
patent: 4813183 (1989-03-01), Jordal
patent: 4889040 (1989-12-01), Man
Clark Doris
Dominion Plastics Inc.
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