Concrete bridge and headwall unit

Details Concrete bridge and headwall unit Concrete bridge and headwall unit

2006-02-07

2006-02-07

Clark, Doris (Department: 2914)

Building units and construction elements

Structure

Design Patent

active

D0514706

CLAIM:
The ornamental design of a concrete bridge and headwall unit, as shown and described.

REFERENCES:
patent: 4993872 (1991-02-01), Lockwood
patent: D356163 (1995-03-01), Ryan
patent: 6205605 (2001-03-01), Orsat

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