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经营范围
发明名称
Устройство автоматической телефонной станции
摘要
申请公布号
SU64188(A1)
申请公布日期
1944.11.30
申请号
SU19390318099
申请日期
1939.04.26
申请人
POLYAKOV V.V.
发明人
POLYAKOV V.V.
分类号
H01H63/06
主分类号
H01H63/06
代理机构
代理人
主权项
地址
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