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发明名称
Improvements in and relating to sound carriers for apparatus for the magnetic recording of acoustic signals in connection with picture films
摘要
申请公布号
GB331859(A)
申请公布日期
1930.07.09
申请号
GB19290010935
申请日期
1929.04.09
申请人
CURT STILLE
发明人
分类号
G03B31/00;G11B5/72;G11B15/18
主分类号
G03B31/00
代理机构
代理人
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