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发明名称
Method and system of motor control and switch operated thereby
摘要
申请公布号
US2343801(A)
申请公布日期
1944.03.07
申请号
US19420457863
申请日期
1942.09.10
申请人
SQUARE D COMPANY
发明人
ROBY FRANK H.
分类号
主分类号
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