Building units and construction elements – Architectural stock material – Extruded shape
Patent
1999-04-30
2000-05-09
Clark, Doris
Building units and construction elements
Architectural stock material
Extruded shape
2501
Patent
active
D04247116
REFERENCES:
patent: D371209 (1996-06-01), De Zen
patent: 4218856 (1980-08-01), Irwin
Johnsson Bo
Johnsson Lars I.
Johnsson Par J.
Clark Doris
Sit Down Export AB
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