US Patent 7131795 Tool device, and method for drilling
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Patent Inventor Names
Isamu Nagai0
Shigeru Mazaki0
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Patent abstract
A tool, a device, and a method for drilling capable of very easily forming a hole part in a drilled matter by extremely smoothly discharging chips produced at drilled positions so as to maintain an excellent drilling efficiency. By using a drilling tool having a shaft with a spiral groove part formed in the outer peripheral surface thereof and a bit fixed to the tip part of the shaft, the hole part is formed in a drilled matter by rotating the shaft.
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US Patent 07131795 Tool device, and method for drilling US Patent 7131795 Tool device, and method for drilling
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Patent Number
071317950
Patent Number
71317950
Edits on 23 Mar, 2023
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Patent Jurisdiction
Patent Number
071317950
Date of Patent
November 7, 2006
0Patent Application Number
104825340
Date Filed
June 28, 2002
0Official Website
Patent Primary Examiner
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US Patent 07131795 Tool device, and method for drilling
Infobox
Is a
Patent jurisdiction
Patent number
07131795
Date of patent
November 7, 2006
Patent application number
10482534
Date Filed
June 28, 2002
Patent primary examiner
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