Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Haydn Howells0
Date of Patent
May 28, 2013
0Patent Application Number
134560750
Date Filed
April 25, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A method of manufacturing a blade including heating and quenching a coil of strip steel material to harden the material, heating the strip steel material to temper the material, grinding a first angle along an edge of the material, and subsequent to the grinding, re-hardening, for example by induction heating, the edge of the material.
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