USD1044894SActiveUtility

Button drill bit

23
Assignee: ZHEJIANG PULANKA ROCK TOOLS CO LTDPriority: Jul 9, 2022Filed: Aug 8, 2022Granted: Oct 1, 2024
Est. expiryJul 9, 2042(~16 yrs left)· nominal 20-yr term from priority
Inventors:Guohua Shen
23
PatentIndex Score
0
Cited by
35
References
1
Claims

Claims

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

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