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经营范围
发明名称
Improvements in or relating to optical projection screens
摘要
申请公布号
GB567686(A)
申请公布日期
1945.02.27
申请号
GB19430010164
申请日期
1943.06.23
申请人
KODAK LIMITED
发明人
分类号
G03B21/60
主分类号
G03B21/60
代理机构
代理人
主权项
地址
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