Building units and construction elements – Architectural stock material – Extruded shape
Patent
1987-01-07
1989-04-04
Word, A. Hugo
Building units and construction elements
Architectural stock material
Extruded shape
Patent
active
D03005640
REFERENCES:
patent: D243678 (1977-03-01), Dallaire
patent: D252471 (1979-07-01), Broadbent
patent: D258619 (1981-03-01), Dallaire
patent: D283295 (1986-04-01), Bancroft
Klil Industries Ltd.
Word A. Hugo
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