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发明名称
摘要
申请公布号
SU472909(A1)
申请公布日期
1975.06.05
申请号
SU19731948682
申请日期
1973.07.23
申请人
发明人
分类号
(IPC1-7):C03C9/00
主分类号
(IPC1-7):C03C9/00
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