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经营范围
发明名称
A process for treating silicas and silicates
摘要
申请公布号
GB1088343(A)
申请公布日期
1967.10.25
申请号
GB19650053468
申请日期
1965.12.16
申请人
DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT VORMALS ROESSLER
发明人
分类号
C01B33/193;C01B33/20
主分类号
C01B33/193
代理机构
代理人
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地址
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