Building block

Details Building block Building block

2005-10-18

2005-10-18

Delehanty, Robert A. (Department: 2914)

Building units and construction elements

Architectural stock material

Construction block or brick type

Design Patent

active

D0510773

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

REFERENCES:
patent: 433219 (1890-07-01), Schwartz
patent: 3309832 (1967-03-01), Filsinger
patent: D295790 (1988-05-01), Forsberg
patent: 5484236 (1996-01-01), Gravier
patent: 2004/0028471 (2004-02-01), Smithdale
patent: 30 14 318 (1980-11-01), None

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