Building units and construction elements – Architectural stock material – Construction block or brick type
Patent
1999-09-10
2000-08-08
Zarfas, Louis S.
Building units and construction elements
Architectural stock material
Construction block or brick type
2501
Patent
active
D04293444
REFERENCES:
patent: D265105 (1982-06-01), Arballo
patent: D329915 (1992-09-01), Gutierrez
patent: D416093 (1999-11-01), Whitson
patent: 3073061 (1963-01-01), Pearson
patent: 5441364 (1995-08-01), Dressler
"Patio Stones": #4 Round Stone and #5 Big Foot Stone, Sears Specialty Home Improvement Catalog, 1982, p. 136, from D25/116 shoe.
Delehanty Robert A.
Zarfas Louis S,.
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