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发明名称
Устройство для циркулярного телеграфирования
摘要
申请公布号
SU57726(A1)
申请公布日期
1939.11.30
申请号
SU19380000869D
申请日期
1938.05.10
申请人
PAVLOV A.V.
发明人
PAVLOV A.V.
分类号
H04L12/18
主分类号
H04L12/18
代理机构
代理人
主权项
地址
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