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经营范围
发明名称
CHANNEL SELECTOR
摘要
申请公布号
SU1721833(A1)
申请公布日期
1992.03.23
申请号
SU19894704609
申请日期
1989.06.14
申请人
KURSKIJ POLT INSTITUT
发明人
ROMANCHENKO ALEKSANDR S,SU;NEKRASOV IGOR S,SU
分类号
H04J7/00
主分类号
H04J7/00
代理机构
代理人
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