Building units and construction elements – Architectural stock material – Construction block or brick type
Patent
1998-11-19
2000-08-29
Zarfas, Louis S.
Building units and construction elements
Architectural stock material
Construction block or brick type
2501
Patent
active
D04303083
REFERENCES:
patent: D411315 (1999-06-01), Bott
patent: 4229123 (1980-10-01), Heinzmann
patent: 5161918 (1992-11-01), Hodel
patent: 5505034 (1996-04-01), Dueck
patent: 5791827 (1998-08-01), Arvai et al.
patent: 5865066 (1999-02-01), Dawson
"consolidation procedures", figs. 3.2.1 and 3.2.2, p. 46 of Architectural Precast Concrete by the Prestressed Concrete Insistitute, Chicago Ill, 1973.
Diamond Wall System, American Masonry Products broshure. patent shoe , 1989 .
Delehanty Robert A.
Keystone Retaining Wall Systems
Zarfas Louis S,.
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