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发明名称
摘要
申请公布号
NL7010221(A)
申请公布日期
1971.01.12
申请号
NL19700010221
申请日期
1970.07.10
申请人
发明人
分类号
C03C3/068;C03C13/04;(IPC1-7):C03C3/08;C03C13/00
主分类号
C03C3/068
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代理人
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