Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
December 1, 2015
0Patent Application Number
130898150
Date Filed
April 19, 2011
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An effective technique is provided for rationally clamping and holding various kinds of tool bits which can be selectively replaced with each other and attached to the driving shaft, in a power tool
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