Building units and construction elements – Structure – Simulative
Patent
1978-11-29
1981-05-12
Word, A. Hugo
Building units and construction elements
Structure
Simulative
D25 92, D2501
Patent
active
D02592142
REFERENCES:
patent: 1231688 (1917-07-01), Alfieres
patent: 1636114 (1927-07-01), Streator
patent: 1812711 (1931-06-01), Pessione
Matthews Guy E.
Word A. Hugo
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