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发明名称
UNIVERSAL HIGH-SPEED DIRECTIONAL RELAY
摘要
申请公布号
CA450562(A)
申请公布日期
1948.08.17
申请号
CAD450562
申请日期
申请人
CANADIAN WESTINGHOUSE COMPANY
发明人
ARTHUR C. MEHRING
分类号
主分类号
代理机构
代理人
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