4. Metal deforming
  5. By use of closed-die and coacting work-forcer
  6. Cup or shell drawing

Johannes Wassen

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Apparatus for forming a split tube

Metal deforming – By tool-couple pressing together adjacent surface portions... – To form longitudinally-seamed tube
Patent

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Drawing hollow blanks in multiple steps

Metal deforming – By use of closed-die and coacting work-forcer – Cup or shell drawing
Patent

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Profile ID: LFUS-PAI-P-1455158

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