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经营范围
发明名称
Gramophone
摘要
申请公布号
US1788305(A)
申请公布日期
1931.01.06
申请号
US19290353544
申请日期
1929.04.08
申请人
BASIL KING GEORGE
发明人
KING GEORGE BASIL
分类号
H04R11/08
主分类号
H04R11/08
代理机构
代理人
主权项
地址
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