USD682898SActiveUtility
Drill head for deep hole drilling
Est. expiryNov 11, 2030(~4.3 yrs left)· nominal 20-yr term from priority
Inventors:Katsushi Fujii
50
PatentIndex Score
9
Cited by
14
References
1
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The ornamental design for a drill head for deep hole drilling, as shown and described.Cited by (0)
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