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发明名称
Improvements in optical film-strip projectors
摘要
申请公布号
GB596652(A)
申请公布日期
1948.01.08
申请号
GB19440025252
申请日期
1944.12.15
申请人
FREDERIC JOSEPH EALING;DUFAY-CHROMEX LIMITED
发明人
分类号
G03B21/10;G03B23/12
主分类号
G03B21/10
代理机构
代理人
主权项
地址
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