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发明名称
Phonograph
摘要
申请公布号
US2323472(A)
申请公布日期
1943.07.06
申请号
US19410392420
申请日期
1941.05.08
申请人
J. P. SEEBURG CORPORATION
发明人
JOHNSON CARL G.;BOYAJIAN JAMES A.
分类号
G11B3/085;G11B19/20;G11B19/22
主分类号
G11B3/085
代理机构
代理人
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地址
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