4. Metal deforming
  5. By application of fluent medium, or energy field
  6. With actuated tool engaging work

Vyacheslav I. Prokofiev

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Method of producing hollow articles by deep drawing

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

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Method of producing hollow articles by deep drawing and press fo

Metal deforming – By application of fluent medium – or energy field – With actuated tool engaging work
Patent

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