Building units and construction elements – Architectural stock material – Construction block or brick type
Patent
1999-07-20
2000-08-01
Zarfas, Louis S.
Building units and construction elements
Architectural stock material
Construction block or brick type
2501
Patent
active
D04290062
REFERENCES:
patent: D317048 (1991-05-01), Forsberg
patent: D363787 (1995-10-01), Powell
patent: D380560 (1997-07-01), Forsberg
patent: D381086 (1977-07-01), Forsberg
patent: D387434 (1997-12-01), Dawson
patent: 5425600 (1995-06-01), Gordon
patent: 5943827 (1999-08-01), Okerlund
Diamond Beveled Block, p. 2, buyline 6935, Sweet's General Building & Renovation Catalog, 1993.
Price Gerald P.
Price Raymond R.
Delehanty Robert A.
Rockwood Retaining Walls Inc.
Zarfas Louis S,.
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