Building units and construction elements – Structure – Simulative
Patent
1977-01-03
1979-01-16
Word, A. Hugo
Building units and construction elements
Structure
Simulative
D25 73, D25 80, D2501
Patent
active
D02508486
REFERENCES:
patent: D184264 (1959-01-01), Nelson
patent: 1918149 (1933-07-01), Sullivan
patent: 3323269 (1967-06-01), Widdowson
patent: 3561184 (1971-02-01), Saxe
Pollock Elliott I.
Word A. Hugo
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