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发明名称
Устройство для радиотелефонного модулирования
摘要
申请公布号
SU20704(A1)
申请公布日期
1931.05.31
申请号
SU19290054513
申请日期
1929.09.12
申请人
ALTMAN G.Z.
发明人
ALTMAN G.Z.
分类号
H03C1/62
主分类号
H03C1/62
代理机构
代理人
主权项
地址
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