USD341532SExpiredUtility

Concrete hammer

73
Assignee: RYOBI LTDPriority: Sep 26, 1991Filed: Mar 13, 1992Granted: Nov 23, 1993
Est. expirySep 26, 2011(expired)· nominal 20-yr term from priority
Inventors:Satoru WatanabeMasakazu Sakamoto
73
PatentIndex Score
15
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a concrete hammer, as shown.

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