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发明名称
Verfahren zur Beeinflussung der Gradation von im Eisenbad zu tonenden photographischen Silberbildern
摘要
申请公布号
DE915654(C)
申请公布日期
1954.07.26
申请号
DE1939U000719D
申请日期
1939.05.25
申请人
UNIVERSUM-FILM AKTIENGESELLSCHAFT
发明人
KANKELWITZ DR. BRUNO
分类号
G03C5/46
主分类号
G03C5/46
代理机构
代理人
主权项
地址
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