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发明名称
method of increasing the volume weight of the coloid power silicon dioxide
摘要
申请公布号
CS207452(B1)
申请公布日期
1981.07.31
申请号
CS19770002776
申请日期
1977.04.27
申请人
ELKEM SPIGERVERKET AS
发明人
KONGSGAARDEN OLE A
分类号
C01B33/18;B01J2/12;B01J19/00;B09B3/00;C01B33/025;C01B33/12;(IPC1-7):C01B33/12
主分类号
C01B33/18
代理机构
代理人
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