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经营范围
发明名称
Electric controlling apparatus
摘要
申请公布号
US2268756(A)
申请公布日期
1942.01.06
申请号
US19390252583
申请日期
1939.01.24
申请人
WARD LEONARD ELECTRIC COMPANY
发明人
LOGAN FRANK G.
分类号
H02P9/18
主分类号
H02P9/18
代理机构
代理人
主权项
地址
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