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发明名称
Variable driving mechanism
摘要
申请公布号
US1755127(A)
申请公布日期
1930.04.15
申请号
US19280315527
申请日期
1928.10.27
申请人
PERKINS MACHINE AND GEAR COMPANY
发明人
PERKINS JULIAN L.;CROFT HIRAM D.
分类号
D06F13/02
主分类号
D06F13/02
代理机构
代理人
主权项
地址
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