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经营范围
发明名称
Precipitated silica
摘要
申请公布号
EP0922671(B1)
申请公布日期
2003.10.08
申请号
EP19980122230
申请日期
1998.11.23
申请人
DEGUSSA AG
发明人
SIRAY, MUSTAFA DR.;SCHEFFLER, JOCHEN DR.
分类号
C01B33/18;C01B33/193;C09C1/28;C09C1/30;C09C3/00;C09D7/00;(IPC1-7):C01B33/193
主分类号
C01B33/18
代理机构
代理人
主权项
地址
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