US Patent 7865070 Heat treating apparatus

Patent 7865070 was granted and assigned to Hitachi on January, 2011 by the United States Patent and Trademark Office.

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Patent Number

Date of Patent

January 4, 2011

Patent Application Number

11578963

Date Filed

March 22, 2005

Patent Primary Examiner

Patent abstract

To prevent both slips caused by damage from projections, and slips caused by adhesive force occurring due to excessive smoothing.

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