Building units and construction elements – Architectural stock material – Construction block or brick type
Design Patent
2005-09-20
2005-09-20
Delehanty, Robert A. (Department: 2914)
Building units and construction elements
Architectural stock material
Construction block or brick type
Design Patent
active
D0509910
CLAIM:
The ornamental design for a retaining wall block, as shown and described.
REFERENCES:
patent: 760774 (1904-05-01), Blakeslee
patent: D278935 (1985-05-01), Scheiwiller
patent: 5622456 (1997-04-01), Risi et al.
patent: D403437 (1998-12-01), Risi et al.
patent: D403785 (1999-01-01), Risi et al.
patent: D451207 (2001-11-01), Risi
Matys Tyler
Risi Angelo
Delehanty Robert A.
Jagna Ltd.
Robic
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