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经营范围
发明名称
Automatic phonograph
摘要
申请公布号
US2340418(A)
申请公布日期
1944.02.01
申请号
US19400354868
申请日期
1940.08.30
申请人
THE JOHN GABEL MANUFACTURING COMPANY
发明人
GABEL JOHN
分类号
G11B17/28
主分类号
G11B17/28
代理机构
代理人
主权项
地址
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