Retaining wall block

Details Retaining wall block Retaining wall block

1997-12-03

1999-12-07

Zarfas, Louis S.

Building units and construction elements

Architectural stock material

Construction block or brick type

2501

Patent

active

D04175069

REFERENCES:
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patent: 5505034 (1996-04-01), Dueck
patent: 5560173 (1996-10-01), Scheiwiller
patent: 5651642 (1997-07-01), Kelley, Jr. et al.
patent: 5771654 (1998-06-01), Moore et al.
Rudolph customized concrete masonry units: Concrete Masonry Pictorial, vol. 33, No. 3, 1977, p. 5.
"6 Round Fluted Block" p. 9 and "8 Rib Split Block" p. 11: Sweet's General Building and Renovation Catalog, vol. 2, 1993; Anchor Concrete Products Inc., Buyline 6518, 04200/ANC.

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