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发明名称
Приспособление для записи звука на лентах с гравировкой в глубину
摘要
申请公布号
SU36967(A1)
申请公布日期
1934.05.31
申请号
SU19300063561K
申请日期
1930.02.02
申请人
E. GYUGENAR
发明人
E. GYUGENAR
分类号
G11B3/00
主分类号
G11B3/00
代理机构
代理人
主权项
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