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发明名称
PREPARATION DE PARTICULES DE CORINDON
摘要
申请公布号
FR2319580(A1)
申请公布日期
1977.02.25
申请号
FR19760020704
申请日期
1976.07.07
申请人
SHOWA DENKO KK
发明人
分类号
C30B7/10;B01D9/00;C01F7/02;C01F7/44;C30B9/00;C30B29/20
主分类号
C30B7/10
代理机构
代理人
主权项
地址
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