Building units and construction elements – Architectural stock material – Extruded shape
Patent
1996-07-29
1997-09-30
Clark, Doris
Building units and construction elements
Architectural stock material
Extruded shape
2501
Patent
active
D03844269
REFERENCES:
patent: D270660 (1983-09-01), Ort
patent: 5448869 (1995-09-01), Unroh et al.
Clark Doris
EMCO Enterprises, Inc.
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