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发明名称
Arrangements for reducing ground noise in electro-optical sound reproducing systems
摘要
申请公布号
GB442714(A)
申请公布日期
1936.02.13
申请号
GB19350017826
申请日期
1935.06.21
申请人
KLANGFILM GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
发明人
分类号
G11B7/00;G11B23/50
主分类号
G11B7/00
代理机构
代理人
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