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发明名称
Verfahren zur Erzeugung von Halbtonbildern auf photochemischem Wege
摘要
申请公布号
DE705957(C)
申请公布日期
1941.05.14
申请号
DE1937N041062D
申请日期
1937.08.10
申请人
PHILIPS PATENTVERWALTUNG G.M.B.H.
发明人
DIPPEL DR. CORNELIS JOHANNES;ALINK DR. ROELOF JAN HENDRIK;KEUNING DR. KLAAS JANNES
分类号
G03C1/62
主分类号
G03C1/62
代理机构
代理人
主权项
地址
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