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发明名称
Соединительное устройство для автоматических телефонных станций
摘要
申请公布号
SU39222(A1)
申请公布日期
1934.10.31
申请号
SU19330134784
申请日期
1933.09.14
申请人
BERG I.D.
发明人
BERG I.D.
分类号
H04Q3/04;H04M3/10
主分类号
H04Q3/04
代理机构
代理人
主权项
地址
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