Lightweight building block

Details Lightweight building block Lightweight building block

2006-08-29

2006-08-29

Delehanty, Robert A. (Department: 2914)

Building units and construction elements

Architectural stock material

Construction block or brick type

Design Patent

active

D0527467

CLAIM:
The ornamental designs for a lightweight building block, as shown and described.

REFERENCES:
patent: 134374 (1872-12-01), Frank
patent: 1897238 (1933-02-01), Chapman
patent: 2094571 (1937-09-01), Fischer
patent: 2701959 (1955-02-01), Briggs
patent: 3281510 (1966-10-01), Lovret
patent: 4787189 (1988-11-01), Haug et al.
patent: D464742 (2002-10-01), Gregori
patent: 2004/0020145 (2004-02-01), Matsufuji

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