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发明名称
摘要
申请公布号
FR2317366(B1)
申请公布日期
1977.12.16
申请号
FR19750021327
申请日期
1975.07.08
申请人
PENARROYA STE MINIERE METALLURGI
发明人
分类号
C22B19/32;C01G17/00;C01G17/02;C01G17/04;C22B3/26;C22B41/00;(IPC1-7):22B41/00
主分类号
C22B19/32
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