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经营范围
发明名称
LEAKAGE CURRENT RELAY
摘要
申请公布号
JPS63217916(A)
申请公布日期
1988.09.12
申请号
JP19870047560
申请日期
1987.03.04
申请人
HITACHI LTD
发明人
TAMURA KOZO
分类号
H02H3/16
主分类号
H02H3/16
代理机构
代理人
主权项
地址
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