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发明名称
摘要
申请公布号
FR1569340(A)
申请公布日期
1969.05.30
申请号
FRD1569340
申请日期
1968.06.18
申请人
发明人
分类号
C09B23/01;C09B23/04;C09B23/06;C09B23/08;C09B23/10
主分类号
C09B23/01
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