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发明名称
Vorrichtung zum Messen der Lichtdurchlaessigkeit photographischer Negative beim Kopieren
摘要
申请公布号
DE827585(C)
申请公布日期
1952.01.10
申请号
DE1948P001761
申请日期
1948.10.02
申请人
RUDOLF MAGNUS
发明人
MAGNUS RUDOLF
分类号
G03B27/72
主分类号
G03B27/72
代理机构
代理人
主权项
地址
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