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发明名称
Дуплексная телеграфная трансляция
摘要
申请公布号
SU70177(A1)
申请公布日期
1947.11.30
申请号
SU19470351474
申请日期
1947.02.01
申请人
MALYSHEV A.I.;NAUMOV P.A.
发明人
MALYSHEV A.I.;NAUMOV P.A.
分类号
H04L5/14
主分类号
H04L5/14
代理机构
代理人
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