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经营范围
发明名称
Procédé et dispositif pour atténuer ou éviter la reproduction des imperfections d'une image sur l'image reproduite dans l'impression et la reproduction optique et par contact en photographie et en cinématographie
摘要
申请公布号
FR1126849(A)
申请公布日期
1956.12.03
申请号
FRD1126849
申请日期
1955.06.30
申请人
发明人
DONELLI ALFREDO
分类号
G03B27/54
主分类号
G03B27/54
代理机构
代理人
主权项
地址
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