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发明名称
MEANS OF TRANSMITTING ROTARY MOTION AT REDUCED OR INCREASED SPEEDS
摘要
申请公布号
CA302741(A)
申请公布日期
1930.08.05
申请号
CAD302741
申请日期
申请人
BERTRAM VALLANCE
发明人
BERTRAM VALLANCE
分类号
主分类号
代理机构
代理人
主权项
地址
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