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发明名称
Polarity reversing switch
摘要
申请公布号
US2630507(A)
申请公布日期
1953.03.03
申请号
US19490101448
申请日期
1949.06.25
申请人
GENERAL MOTORS CORPORATION
发明人
LAWSON JOHN W.
分类号
H01H50/20
主分类号
H01H50/20
代理机构
代理人
主权项
地址
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