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经营范围
发明名称
Improvements in and relating to cinematographic or like moving display apparatus
摘要
申请公布号
GB520630(A)
申请公布日期
1940.04.30
申请号
GB19380030520
申请日期
1938.10.21
申请人
DOUGLAS ALEXANDER PAVELY;LESLIE EDWARD WILLIAMS
发明人
分类号
G03B15/08
主分类号
G03B15/08
代理机构
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