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发明名称
Improvements in and relating to the bleaching of sulphuric acid
摘要
申请公布号
GB508302(A)
申请公布日期
1939.06.26
申请号
GB19370035717
申请日期
1937.12.24
申请人
JOSEPH PIERRE LEEMANS;SOCIETE GENERALE METALLURGIQUE DE HOBOKEN
发明人
分类号
C01B17/90
主分类号
C01B17/90
代理机构
代理人
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地址
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