Building units and construction elements – Prefabricated unit – Finishing unit
Patent
1975-05-05
1978-08-22
Burke, Wallace R.
Building units and construction elements
Prefabricated unit
Finishing unit
D25 80, D2501
Patent
active
D02490684
REFERENCES:
patent: 854806 (1907-05-01), Crittenden
patent: 3562988 (1971-02-01), Gregoire
Bullock B. J.
Burke Wallace R.
Levy Sherman
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