Building units and construction elements – Architectural stock material – Extruded shape
Patent
1987-04-23
1991-01-15
Word, A. Hugo
Building units and construction elements
Architectural stock material
Extruded shape
Patent
active
D03138593
REFERENCES:
patent: 50050 (1916-12-01), Landine
patent: 59367 (1921-10-01), McCarthy
patent: 742549 (1903-10-01), Forsyth
patent: 1147836 (1915-07-01), Allmand
patent: 1307822 (1919-06-01), Kling
patent: 3545496 (1970-12-01), Wogerbauer
Clark Doris
Word A. Hugo
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