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经营范围
发明名称
Automatic phonograph
摘要
申请公布号
US2354899(A)
申请公布日期
1944.08.01
申请号
US19410395974
申请日期
1941.05.31
申请人
WILBER PAUL F
发明人
WILBER PAUL 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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