Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kou Matsubayashi0
Date of Patent
May 15, 2007
0Patent Application Number
105679550
Date Filed
August 9, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention provides a method for manufacturing a right- and left-hand screw having a first external right-handed thread and a second external left-handed thread formed by an inexpensive rolling process using a rolling die with a first thread-cutting die for the first thread and a second thread-cutting die for the second thread.
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