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发明名称
Verfahren und Vorrichtung zum Retuschieren bei Kleinbildnegativen
摘要
申请公布号
DE809757(C)
申请公布日期
1951.08.02
申请号
DE1949P048978
申请日期
1949.07.15
申请人
KROELING FRANZ
发明人
KROELING FRANZ
分类号
G03D15/00
主分类号
G03D15/00
代理机构
代理人
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