USD568132SActiveUtility

Sharpener for drill bits

Assignee: CHOON NANG ELEC APPL MFY LTDPriority: Sep 13, 2006Filed: Mar 7, 2007Granted: May 6, 2008
Est. expirySep 13, 2026(~0.1 yrs left)· nominal 20-yr term from priority
Inventors:Ping Hay Heun
50
PatentIndex Score
7
Cited by
14
References
1
Claims

Claims

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

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