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Class Information
Number: 29/DIG.21
Name: Metal working > Method or apparatus for heating
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
6675457 Method for manufacturing a one-piece torsional vibration damper retainer plate Jan. 13, 2004
6195866 Method for making an extruder sleeve Mar. 6, 2001











 
 
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