Friction contact type speed changer
作者： Charles E Kraus
DOI:
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摘要:
lens.org 参考文章(6)
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Esnault-Pelterie Robert, Progressive change-speed device ,(1925)
Erban Richard, Gearing for transmitting rotary motions ,(1922)
Kilroy Charles, POWER-TRANSMISSION MECHANISM. ,(1909)
Richard S Jacobsen, Change speed transmission ,(1937)