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经营范围
发明名称
Automatic phonograph
摘要
申请公布号
US2291538(A)
申请公布日期
1942.07.28
申请号
US19400318906
申请日期
1940.02.14
申请人
ROCK-OLA MANUFACTURING CORPORATION
发明人
EBERT EDWARD A.
分类号
G11B17/02
主分类号
G11B17/02
代理机构
代理人
主权项
地址
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