Method for automatically advancing articles which present a shank portion and a head portion or the like,and an automatically operating apparatus carrying out the method
作者： Bo Herbert Lundgren
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lens.org 参考文章(3)
Jr William G Brosene, Stud feeding mechanism ,(1967)
Donald D Lanz, Orientation apparatus and method ,(1961)
Eugene B Clifford, Ted T Yarze, Apparatus for feeding articles ,(1961)