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发明名称
摘要
申请公布号
BE738484(A)
申请公布日期
1970.02.16
申请号
BED738484
申请日期
1969.09.05
申请人
发明人
分类号
C02F5/14;C11D3/36
主分类号
C02F5/14
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代理人
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