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发明名称
PROCESS FOR OBTAINING A POWDER IRON (II, III)OXIDE OF PREDTERMINED PARTICLE SIZE, USED ESPECIALLY AS BLACK PIGMENT
摘要
申请公布号
YU257774(A)
申请公布日期
1983.04.27
申请号
YU19740002577
申请日期
1974.09.24
申请人
RUTHNER AG
发明人
RUTHNER MICHAEL J.
分类号
C09C1/22;C01G49/00;C01G49/08;C09C1/00;C09C1/24;G11B5/706;(IPC1-7):C22B3/00
主分类号
C09C1/22
代理机构
代理人
主权项
地址
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