Building units and construction elements – Structure – Simulative
Patent
1983-08-04
1986-04-22
Word, A. Hugo
Building units and construction elements
Structure
Simulative
Patent
active
D02835517
REFERENCES:
patent: D27761 (1897-10-01), Mark
patent: 3267823 (1966-08-01), MacRae
patent: 3873225 (1975-03-01), Jakobsen et al.
patent: 4185939 (1980-01-01), Barth et al.
patent: 4492065 (1985-01-01), Clarke, Jr. et al.
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