Shearing and welding machine

作者: Tribe Thomas Francis

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参考文章(8)
Joseph H Cooper, Narrow lap seam welder ,(1956)
Michael C Uhrain, Metal joiner, particularly for strip ,(1959)
Leroy R Conklin, Albert R Geiszler, Current control for travel head strip seam welders ,(1951)
George H Rendel, Automatic positioning and welding ,(1944)
Calvin C Blackman, Robert H Jelinek, John J Sims, Strip handling apparatus ,(1963)