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经营范围
发明名称
GROUND DETECTING CIRCUIT
摘要
申请公布号
JPS5580066(A)
申请公布日期
1980.06.16
申请号
JP19780153087
申请日期
1978.12.13
申请人
HITACHI LTD
发明人
TOBIYO MASAHIRO;SHIMIZU ITSUO
分类号
G01R31/02;H02P7/28;H02P7/292
主分类号
G01R31/02
代理机构
代理人
主权项
地址
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