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发明名称
Polyphase wattmetric relay
摘要
申请公布号
US2231717(A)
申请公布日期
1941.02.11
申请号
US19390265255
申请日期
1939.03.31
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
HARDER EDWIN L.
分类号
H02H3/42
主分类号
H02H3/42
代理机构
代理人
主权项
地址
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