4. Metal deforming
  5. By use of tool acting during relative rotation between tool...
  6. During rotation of work

Andreas Knoepfler

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Heat transfer tube and a method of fabrication thereof

Heat exchange – With coated – roughened or polished surface
Reexamination Certificate

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Method of fabricating a heat exchanger tube

Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Reexamination Certificate

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Method of manufacture of heat-exchanger tube structured on...

Metal working – Method of mechanical manufacture – Heat exchanger or boiler making
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2733712

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