Building units and construction elements – Structure – Simulative
Patent
1976-12-21
1979-11-27
Word, A. Hugo
Building units and construction elements
Structure
Simulative
D25 91, D2501
Patent
active
D02535548
REFERENCES:
patent: 2623303 (1952-12-01), Mindel
patent: 3800486 (1974-04-01), Harvey
patent: 4071265 (1978-01-01), Wallace
AB Lyckeaborgs Bruk
Thompson Irvin S.
Word A. Hugo
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