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经营范围
发明名称
Improvements in and relating to photographic printing apparatus
摘要
申请公布号
GB501103(A)
申请公布日期
1939.02.21
申请号
GB19380011346
申请日期
1938.04.13
申请人
LEO KLUITMANN
发明人
分类号
G03B27/12
主分类号
G03B27/12
代理机构
代理人
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