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发明名称
摘要
申请公布号
DE2204244(B2)
申请公布日期
1980.06.04
申请号
DE19722204244
申请日期
1972.01.29
申请人
E.I. DU PONT DE NEMOURS AND CO., WILMINGTON, DEL. (V.ST.A.)
发明人
GERVAY, JOSEPH EDMUND, RED BANK, N.J. (V.ST.A.)
分类号
G03F7/004;G03F5/20;G03F7/11;(IPC1-7):G03C1/68;G03F7/10
主分类号
G03F7/004
代理机构
代理人
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