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发明名称
摘要
申请公布号
GB1264958(A)
申请公布日期
1972.02.23
申请号
GBD1264958
申请日期
1968.07.15
申请人
发明人
分类号
C03B18/14;C03C21/00
主分类号
C03B18/14
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