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经营范围
发明名称
Automatic phonograph
摘要
申请公布号
US1895614(A)
申请公布日期
1933.01.31
申请号
US19280294723
申请日期
1928.07.23
申请人
JOHN FLAM
发明人
ELLIOTT HAROLD F.
分类号
G11B17/04
主分类号
G11B17/04
代理机构
代理人
主权项
地址
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