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发明名称
Ground-fault protection
摘要
申请公布号
US2162531(A)
申请公布日期
1939.06.13
申请号
US19370138798
申请日期
1937.04.24
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
EVANS ROBERT D.
分类号
H02H3/17
主分类号
H02H3/17
代理机构
代理人
主权项
地址
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