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发明名称
Hand control for electric motors
摘要
申请公布号
US1827372(A)
申请公布日期
1931.10.13
申请号
US19280281707
申请日期
1928.05.31
申请人
RIDDELL ARTHUR M
发明人
RIDDELL ARTHUR M.
分类号
H02P1/06
主分类号
H02P1/06
代理机构
代理人
主权项
地址
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