USD679974SActiveUtility

Attachment type sharpening tool

51
Assignee: WU SHIH-PIAOPriority: Mar 1, 2012Filed: Mar 1, 2012Granted: Apr 16, 2013
Est. expiryMar 1, 2032(~5.6 yrs left)· nominal 20-yr term from priority
Inventors:Shih-Piao Wu
51
PatentIndex Score
7
Cited by
22
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for an attachment type sharpening tool, as shown and described.

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