USD299067SExpiredUtility

Modular block wall

99
Assignee: KEYSTONE RETAINING WALL SYSTEMS INCPriority: Apr 2, 1987Filed: Apr 2, 1987Granted: Dec 20, 1988
Est. expiryApr 2, 2007(expired)· nominal 20-yr term from priority
Inventors:Paul J. Forsberg
99
PatentIndex Score
97
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a modular block wall as shown and described.

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