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Results for Seamless Tube Industry

Seamless Tube Industry

A block away was the plant in which Ralph C. Stiefel, the ...

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Results for Seamless Tube Industry

Seamless Tube Industry

A block away was the plant in which Ralph C. Stiefel, the Swiss-born engineer, invented the rotary piercing process for making steel tubing, 1895. He helped found Ellwood Weldless Tube Co., which became a nucleus for the National Tube Div. ...

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