Wall block

Details Wall block Wall block

1986-06-02

1988-09-06

Word, A. Hugo

Building units and construction elements

Architectural stock material

Construction block or brick type

Patent

active

D02975742

REFERENCES:
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The Hollow Building Tile Assoc. Handbook, p. 11, Jan. 1924.
The Besser Company Bulletin, Feb. 1985.

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