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发明名称
VERFAHREN ZUR HERSTELLUNG VON FAST CADMIUMFREIEM CALCIUMSULFAT UND NACH DIESEM VERFAHREN ERHALTENES CALCIUMSULFAT.
摘要
申请公布号
DE3780079(D1)
申请公布日期
1992.08.06
申请号
DE19873780079
申请日期
1987.04.23
申请人
DSM N.V., HEERLEN, NL
发明人
SPIJKER, RUUD, NL-1962 AJ HEEMSKERK, NL;TJIOE, TJAY TJIEN, NL-2903 AM CAPELLE A/D IJSSEL, NL;WITKAMP, GEERT JAN, NL-2611 JE DELFT, NL
分类号
C01B25/22;C01B25/223;C01B25/226;C01B25/229;C01B25/238;C01F11/46;(IPC1-7):C01B25/238
主分类号
C01B25/22
代理机构
代理人
主权项
地址
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