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经营范围
发明名称
Improvements in or relating to gramophones
摘要
申请公布号
GB665834(A)
申请公布日期
1952.01.30
申请号
GB19480010118
申请日期
1948.04.12
申请人
ARTHUR JOHN MILTON
发明人
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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