Building units and construction elements – Structure – Simulative
Patent
1978-01-06
1980-09-16
Word, A. Hugo
Building units and construction elements
Structure
Simulative
D25 84, D2502
Patent
active
D02569540
REFERENCES:
patent: 1634126 (1927-06-01), Tyra
patent: 2340038 (1944-01-01), Buczkowski et al.
patent: 3269075 (1966-08-01), Marini et al.
patent: 3347001 (1967-10-01), Cosden
patent: 3412517 (1968-11-01), Ellis et al.
patent: 3897667 (1975-08-01), Turek
patent: 3982373 (1976-09-01), Wilson et al.
Flynn Robert D.
Rainbow Metal Co., Ltd.
Word A. Hugo
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