USD349029SExpiredUtility

Portable elecrtric hammer drill

92
Assignee: HITACHI KOKI KKPriority: Nov 21, 1992Filed: May 18, 1993Granted: Jul 26, 1994
Est. expiryNov 21, 2012(expired)· nominal 20-yr term from priority
Inventors:Naoki MatsunagaHideaki HasegawaYoshihiko WatanabeToshiaki Takagi
92
PatentIndex Score
42
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3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a portable electric hammer drill, as shown and described.

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