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发明名称
摘要
申请公布号
FR2171890(B1)
申请公布日期
1977.04.01
申请号
FR19720004924
申请日期
1972.02.15
申请人
DERREUMAUX ANTOINE
发明人
分类号
C02F1/76;(IPC1-7):C02B3/00
主分类号
C02F1/76
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