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经营范围
发明名称
Direct production of positive photographic images
摘要
申请公布号
GB695915(A)
申请公布日期
1953.08.19
申请号
GB19510016027
申请日期
1951.07.05
申请人
FARBENFABRIKEN BAYER
发明人
分类号
G03C8/06
主分类号
G03C8/06
代理机构
代理人
主权项
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