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经营范围
发明名称
Improvements in or relating to masking means for photographic optical copying apparatus
摘要
申请公布号
GB490899(A)
申请公布日期
1938.08.23
申请号
GB19380001172
申请日期
1938.01.13
申请人
KODAK LIMITED
发明人
分类号
G03B27/465;G03B27/62
主分类号
G03B27/465
代理机构
代理人
主权项
地址
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