4. Metal deforming
  5. By relatively receding work-engaging tool-faces
  6. Embodying three or more tools

Hermann Josef Frentzen

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Edge working machine with hold down for sheet metal to be worked

Work holders – With fluid means – Cylinder-piston means directly moves jaw
Patent

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Mechanical tube expander

Metal deforming – By relatively receding work-engaging tool-faces – Embodying three or more tools
Patent

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Profile ID: LFUS-PAI-P-473484

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