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经营范围
发明名称
Procédé pour la production de masques colorés dans des matières photographiques colorées
摘要
申请公布号
FR997767(A)
申请公布日期
1952.01.10
申请号
FRD997767
申请日期
1949.10.21
申请人
发明人
BAYER OTTO;CAUER ERNST
分类号
G03C7/18
主分类号
G03C7/18
代理机构
代理人
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地址
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