Building units and construction elements – Structure – Simulative
Patent
1976-03-24
1978-03-28
Burke, Wallace R.
Building units and construction elements
Structure
Simulative
D2503
Patent
active
D02476290
REFERENCES:
patent: 855138 (1907-05-01), Sciple
patent: 946665 (1910-01-01), Ette
Burke Wallace R.
Caplan Julian
Gandy James M.
Pacific Utilities Supply Co.
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