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发明名称
Электромагнитный звукосниматель
摘要
申请公布号
SU29616(A1)
申请公布日期
1933.03.31
申请号
SU19320107905
申请日期
1932.04.22
申请人
ROGUNOV A.V.
发明人
ROGUNOV A.V.
分类号
G11B11/20;G11B3/00
主分类号
G11B11/20
代理机构
代理人
主权项
地址
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