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发明名称
Improved Etching methods and Compositions
摘要
申请公布号
GB1177881(A)
申请公布日期
1970.01.14
申请号
GB19680002369
申请日期
1968.01.16
申请人
PHOTO-ENGRAVERS RESEARCH INSTITUTE INCORPORATED
发明人
分类号
C23F1/18
主分类号
C23F1/18
代理机构
代理人
主权项
地址
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