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发明名称
Improvements in and relating to cinematographic projection apparatus
摘要
申请公布号
GB643648(A)
申请公布日期
1950.09.27
申请号
GB19460011379
申请日期
1946.04.12
申请人
THE MINISTER OF SUPPLY
发明人
HEWITT JOSEPH
分类号
G01S7/04;G03B15/08
主分类号
G01S7/04
代理机构
代理人
主权项
地址
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