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发明名称
DIFFERENTIATING DEVICE
摘要
申请公布号
SU1667113(A1)
申请公布日期
1991.07.30
申请号
SU19894679452
申请日期
1989.04.18
申请人
CH VI POVYSHENIYA KVALIFIKATSII RUKOVODYASHCHIKH RABOTNIKOV SPETSIALISTOV
发明人
CHERTKOV NIKOLAJ K,SU;BARMENKOV BORIS G,SU
分类号
G06G7/18
主分类号
G06G7/18
代理机构
代理人
主权项
地址
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