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发明名称
Multispeed motor head unit
摘要
申请公布号
US2545040(A)
申请公布日期
1951.03.13
申请号
US19490105799
申请日期
1949.07.20
申请人
CHARLES DREXLER CO., INC.
发明人
MORGAN RALPH H.
分类号
F16H3/54
主分类号
F16H3/54
代理机构
代理人
主权项
地址
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