4. Metal deforming
  5. By use of closed-die and coacting work-forcer
  6. Forcing work into or within closed die; e.g., forging

Chang Fa Liu

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Method for forging/molding a coarse blank of an aluminum...

Metal working – Method of mechanical manufacture – Combined manufacture including applying or shaping of fluent...
Reexamination Certificate

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Method for forging/molding a coarse blank of an oil cylinder

Metal deforming – By use of closed-die and coacting work-forcer – Forcing work into or within closed die; e.g. – forging
Reexamination Certificate

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