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发明名称
摘要
申请公布号
DE3425716(C2)
申请公布日期
1987.02.12
申请号
DE19843425716
申请日期
1984.03.30
申请人
INTERNATIONAL MINERALS & CHEMICAL CORP., NORTHBROOK, ILL., US
发明人
LASK, GERT-WILHELM, DR.RER.NAT., 6631 BERUS, DE
分类号
C01B25/027;C01B33/025;C22B1/245;C22B5/06;C22B26/22;C22C1/02;(IPC1-7):C22B4/00;C01B25/02;C22B4/02
主分类号
C01B25/027
代理机构
代理人
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