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发明名称
Switch operating means
摘要
申请公布号
US2974540(A)
申请公布日期
1961.03.14
申请号
US19590841844
申请日期
1959.09.23
申请人
MCGRAW-EDISON COMPANY
发明人
BERTLING RONALD J.
分类号
H01H3/40
主分类号
H01H3/40
代理机构
代理人
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地址
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