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发明名称
Verfahren zur Herstellung farbiger Tonkopien in Sprossenschrift
摘要
申请公布号
DE728253(C)
申请公布日期
1942.11.23
申请号
DE1941I068609D
申请日期
1941.01.10
申请人
I.G. FARBENINDUSTRIE AG.
发明人
KUESTER DR. ALFRED
分类号
G03C7/24
主分类号
G03C7/24
代理机构
代理人
主权项
地址
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