USD503078SExpiredUtility

Portable electric hammer drill

58
Assignee: HITACHI KOKI KKPriority: Aug 5, 2002Filed: Jan 31, 2003Granted: Mar 22, 2005
Est. expiryAug 5, 2022(expired)· nominal 20-yr term from priority
Inventors:Masato SakaiSeiichi KodatoHiroshi HagaShingo Yamazaki
58
PatentIndex Score
10
Cited by
19
References
1
Claims

Claims

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

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