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经营范围
发明名称
Improvements in or connected with picture recording cameras
摘要
申请公布号
GB319373(A)
申请公布日期
1930.05.22
申请号
GB19290028694
申请日期
1929.09.21
申请人
BRITISH TALKING PICTURES LIMITED
发明人
分类号
G03B15/08
主分类号
G03B15/08
代理机构
代理人
主权项
地址
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