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发明名称
DIFFERENTIAL RELAY
摘要
申请公布号
CA439195(A)
申请公布日期
1947.01.14
申请号
CAD439195
申请日期
申请人
COOK ELECTRIC COMPANY
发明人
CARL P. CLARE;GEORGE WEINREICH
分类号
主分类号
代理机构
代理人
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