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发明名称
DEVICE FOR INDICATION OF POLARITY AND MODE OF CURRENT
摘要
申请公布号
RU1824590(C)
申请公布日期
1993.06.30
申请号
SU19904879429
申请日期
1990.10.31
申请人
RYABININ BORIS P
发明人
RYABININ BORIS P
分类号
G01R19/14
主分类号
G01R19/14
代理机构
代理人
主权项
地址
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