Building units and construction elements – Structure – Having angular roof
Patent
1983-12-28
1986-06-03
Word, A. Hugo
Building units and construction elements
Structure
Having angular roof
D25 57
Patent
active
D02841029
REFERENCES:
patent: D77857 (1929-02-01), Petersen
patent: D90391 (1933-07-01), Stedman
patent: D147470 (1947-09-01), Petersen
patent: D269550 (1983-06-01), Building
Dobbs Houses, Inc.
Word A. Hugo
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