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发明名称
METHOD FOR PREPARING CRYOLITE
摘要
申请公布号
SU1138386(A1)
申请公布日期
1985.02.07
申请号
SU19833612182
申请日期
1983.06.27
申请人
GUDOVICH PETR A,SU
发明人
GUDOVICH PETR A,SU
分类号
C01F7/54;(IPC1-7):C01F7/54
主分类号
C01F7/54
代理机构
代理人
主权项
地址
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