Building units and construction elements – Structure – Having angular roof
Patent
1987-09-21
1990-09-04
Word, A. Hugo
Building units and construction elements
Structure
Having angular roof
D25 6, D25 17
Patent
active
D03104206
REFERENCES:
patent: D222345 (1971-10-01), McGlashon
patent: D234591 (1975-03-01), Jenlans, Jr.
patent: D272192 (1984-01-01), Arenas
patent: D277510 (1985-02-01), Fogler
patent: 3894369 (1975-07-01), Schmitt
Beaman Robert E.
Clark Willis F.
Coles Doris V.
Laughner Brothers, Inc.
Word A. Hugo
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