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经营范围
发明名称
SODIUM TUNGSTATE PREPARATION PROCESS
摘要
申请公布号
HU9801918(A3)
申请公布日期
1998.12.28
申请号
HU19980001918
申请日期
1996.06.03
申请人
H.C.STARCK GMBH, GOSLAR
发明人
分类号
C01G41/00;C22B7/00
主分类号
C01G41/00
代理机构
代理人
主权项
地址
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