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发明名称
Improvements in or relating to silicic acid production
摘要
申请公布号
GB1144355(A)
申请公布日期
1969.03.05
申请号
GB19660009803
申请日期
1966.03.07
申请人
KONINKLIJKE ZWAVELZUURFABRIEKEN VOORHEEN KETJEN N.V.
发明人
分类号
C01B33/193
主分类号
C01B33/193
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代理人
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