Tissure interfolding method and apparatus
作者： Reinhardt N Sabee
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lens.org 参考文章(4)
Samuel J Campbell, Art of manufacturing folded paper articles ,(1932)
Smith Walter Harold, Zigzag-pile-forming machine ,(1929)
Clayton E Wyrick, Folding and collating machine ,(1939)
Orlando S Gauch, Paper folding and delivery mechanism. ,(1911)