Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chih-Ching Hsieh0
Date of Patent
September 6, 2022
0Patent Application Number
167262700
Date Filed
December 24, 2019
0Patent Citations Received
Patent Primary Examiner
A driving head structure of a socket wrench includes an assembling base and a joint portion. The assembling base includes a plurality of convex curved surfaces. The joint portion is disposed on the assembling base. The assembling base is cylinder-shaped, and the joint portion is cuboid-shaped. Each of the convex curved surfaces is contacted with each side of the joint portion.
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