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经营范围
发明名称
Improvements in apparatus for recording sound on a band of material
摘要
申请公布号
GB590374(A)
申请公布日期
1947.07.16
申请号
GB19440017876
申请日期
1944.09.19
申请人
EDWARD KINSELLA
发明人
分类号
G11B15/28
主分类号
G11B15/28
代理机构
代理人
主权项
地址
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