Building units and construction elements – Structure
Design Patent
2000-08-29
2002-03-05
Clark, Doris (Department: 2914)
Building units and construction elements
Structure
Design Patent
active
D0454203
CLAIM:
The ornamental design for a open-bottom modular culvert, as shown and described.
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603212 B.C. Ltd.
Clark Doris
Oyen Wiggs Green & Mutala
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