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经营范围
发明名称
Improvements in and relating to sieves, perforate screens, or filter plates
摘要
申请公布号
GB634217(A)
申请公布日期
1950.03.15
申请号
GB19470012459
申请日期
1947.05.08
申请人
JOHN KILNER WELLS
发明人
分类号
C25D1/08
主分类号
C25D1/08
代理机构
代理人
主权项
地址
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