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发明名称
Improved process of and apparatus for recording sound
摘要
申请公布号
GB384979(A)
申请公布日期
1932.12.15
申请号
GB19310007265
申请日期
1931.03.09
申请人
JACQUES GEORGES CHARLES BRILLOUIN
发明人
分类号
G11B7/28
主分类号
G11B7/28
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