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发明名称
Устройство для регистрации сигналов
摘要
申请公布号
SU57777(A1)
申请公布日期
1939.11.30
申请号
SU19390001816D
申请日期
1939.09.05
申请人
OSIPOV V.I.
发明人
OSIPOV V.I.
分类号
G09G3/10
主分类号
G09G3/10
代理机构
代理人
主权项
地址
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