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发明名称
Verfahren zur Herstellung eines Films zur AEtzung einer Photogravueredruckflaeche
摘要
申请公布号
DE501259(C)
申请公布日期
1930.07.01
申请号
DE1928G072303D
申请日期
1928.01.19
申请人
RAYMOND N. GETCHES
发明人
分类号
G03F5/20
主分类号
G03F5/20
代理机构
代理人
主权项
地址
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