Building units and construction elements – Architectural stock material – Extruded shape
Patent
1991-03-12
1994-02-15
Word, A. Hugo
Building units and construction elements
Architectural stock material
Extruded shape
Patent
active
D03443566
REFERENCES:
patent: D269910 (1983-07-01), Johansson
patent: D275324 (1984-08-01), Wahlin
Sapa Extrusions Designer's Guide .COPYRGT.1972 right end inner flap of brochure 4th item from top of page.
Clark Doris
Outwater Plastics/Industries, Inc.
Word A. Hugo
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