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经营范围
发明名称
Automatic record changing device
摘要
申请公布号
GB590997(A)
申请公布日期
1947.08.05
申请号
GB19440000168
申请日期
1944.01.05
申请人
A.-B. E. HANSSON & CO.
发明人
分类号
G11B17/16
主分类号
G11B17/16
代理机构
代理人
主权项
地址
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