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发明名称
Lichtempfindliche Kopiermasse und daraus hergestelltes aetzfestes Kopiermaterial
摘要
申请公布号
DE2019426(A1)
申请公布日期
1971.11.11
申请号
DE19702019426
申请日期
1970.04.22
申请人
KALLE AG
发明人
RUCKERT,HANS,DR.;STEPPAN,HARTMUT,DR.
分类号
G03F7/021
主分类号
G03F7/021
代理机构
代理人
主权项
地址
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