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经营范围
发明名称
Improvements in or relating to filter devices for use in tobacco pipes
摘要
申请公布号
GB922942(A)
申请公布日期
1963.04.03
申请号
GB19590044342
申请日期
1959.12.31
申请人
DUNCAN HENDERSON
发明人
分类号
A24F5/06
主分类号
A24F5/06
代理机构
代理人
主权项
地址
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