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发明名称
摘要
申请公布号
FR2220483(B1)
申请公布日期
1977.09.23
申请号
FR19740007637
申请日期
1974.03.06
申请人
PPG INDUSTRIES
发明人
分类号
C03B18/04;C03B18/00;C03B18/06;(IPC1-7):C03B18/02
主分类号
C03B18/04
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