Retaining wall block with side openings

Details Retaining wall block with side openings Retaining wall block with side openings

1997-12-31

1999-11-16

Zarfas, Louis S.

Building units and construction elements

Architectural stock material

Construction block or brick type

2501

Patent

active

D04166272

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Gordon Schmidt: "The Story . . . " concrete block illustrated; Concrete, Dec. 1958, p. 26.

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