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发明名称
Apparatus for recording or reproducing sound
摘要
申请公布号
US2071192(A)
申请公布日期
1937.02.16
申请号
US19350034203
申请日期
1935.08.01
申请人
GENERAL ELECTRIC COMPANY
发明人
YOUNTS GLEN L.
分类号
G11B15/26
主分类号
G11B15/26
代理机构
代理人
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