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经营范围
发明名称
DIFFERENTIAL TYPE RELAY
摘要
PURPOSE:To enable detection of light failure by setting operating value of first differential type relay lower than that of second one while delaying operating time limit of first relay from that of second one.
申请公布号
JPS52124152(A)
申请公布日期
1977.10.18
申请号
JP19760041550
申请日期
1976.04.12
申请人
MITSUBISHI ELECTRIC CORP
发明人
MATSUMOTO TADASHI
分类号
H02H7/06;H02H3/26;H02H3/28;H02H7/22
主分类号
H02H7/06
代理机构
代理人
主权项
地址
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