Apparatus for rolling threads into metal pipe

作者: Harry J Finch

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参考文章(15)
Joseph D Kreis, Elsmere W Mckinney, Fluid actuated rolled forming machine ,(1936)
Peter P-g Hall, Thread milling machine ,(1931)
Charles T Draper, Thread swaging apparatus ,(1937)
Dimick Daniel Baker, Cast pipe and joint therefor ,(1922)
Hall Earl Frank, Reinforced well-tubing ,(1919)
Austin H Riegner, Nurling-tool holder. ,(1903)