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发明名称
EARTH PROTECTION RELAY
摘要
申请公布号
JPS5380538(A)
申请公布日期
1978.07.17
申请号
JP19760154953
申请日期
1976.12.24
申请人
HITACHI LTD
发明人
SASAKI HIROSHI
分类号
H02H3/28;H02H3/16
主分类号
H02H3/28
代理机构
代理人
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地址
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