US Patent D823909 Drill head

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Is a

Patent

Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

D8239090

Patent Inventor Names

Yoshiji Sato0

Ryusei Hamada0

Yuma Kawakami0

Date of Patent

July 24, 2018

Patent Application Number

295964150

Date Filed

March 8, 2017

Patent Citations Received

‌

US Patent 11655681 Inner cutter for drilling

‌

US Patent D1029896 Drill head

‌

US Patent D1029060 Drill holder

Patent Primary Examiner

‌

Darlington Ly

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