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发明名称
Duodirectional-unidirectional coupling
摘要
申请公布号
US2269965(A)
申请公布日期
1942.01.13
申请号
US19390300739
申请日期
1939.10.23
申请人
WEMP ERNEST E
发明人
WEMP ERNEST E.
分类号
F16D41/08
主分类号
F16D41/08
代理机构
代理人
主权项
地址
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