USD406511SExpiredUtility

Hammer drill

85
Assignee: BLACK & DECKER INCPriority: Dec 11, 1997Filed: Dec 11, 1997Granted: Mar 9, 1999
Est. expiryDec 11, 2017(expired)· nominal 20-yr term from priority
Inventors:Donald W. Zurwelle
85
PatentIndex Score
28
Cited by
12
References
1
Claims

Claims

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

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