Wall block

Details Wall block Wall block

1985-11-08

1990-10-16

Word, A. Hugo

Building units and construction elements

Architectural stock material

Construction block or brick type

Patent

active

D03114449

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The Hollow Building Tile Assoc. Handbook, p. 11, Jan. 1924.
The Besser Company Bulletin, Feb. 1985.
The Besser Company brochure, "Modular Concrete Block", 1984.
The Besser Company brochure, "Paving Stone", Jun. 1984.
Concrete Masonry Pictorial, vol. 33, No. 3, C 1977, p. 35.

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