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发明名称
Электронный четырехканальный коммутатор
摘要
申请公布号
SU145933(A1)
申请公布日期
1961.11.30
申请号
SU19610699282
申请日期
1961.02.25
申请人
发明人
FRIDMAN B.P.
分类号
H03K17/51
主分类号
H03K17/51
代理机构
代理人
主权项
地址
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