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发明名称
Improvements in and relating to film driving apparatus
摘要
申请公布号
GB361304(A)
申请公布日期
1931.11.16
申请号
GB19300014842
申请日期
1930.05.14
申请人
THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED
发明人
分类号
G11B15/56
主分类号
G11B15/56
代理机构
代理人
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