Is a
Patent attributes
Patent Applicant
0
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chin-Tan Huang0
Date of Patent
June 7, 2005
0Patent Application Number
106731740
Date Filed
September 30, 2003
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A screwdriver includes a handle having a polygonal hole defined in a first end thereof for allowing an operate shaft extending into the handle. A locking device is mounted in the handle for selective holding the operate shaft in place. A controlling device is mounted to the handle and corresponds to the locking device for forward moving the slider and making the locking device disengaged from the operate shaft for adjusting the total length of the screwdriver.
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