Building units and construction elements – Structure – Simulative
Patent
1983-04-21
1985-12-24
Word, A. Hugo
Building units and construction elements
Structure
Simulative
Patent
active
D02819082
REFERENCES:
patent: D240274 (1976-06-01), Markos
patent: 2766706 (1956-10-01), Ludowici
patent: 3605369 (1971-09-01), Merrill et al.
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