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发明名称
Improvements in letter folders for correspondence and like purposes
摘要
申请公布号
GB542978(A)
申请公布日期
1942.02.04
申请号
GB19400012686
申请日期
1940.08.07
申请人
CECIL JAMES EVANS KEBBELL
发明人
分类号
B42D15/08
主分类号
B42D15/08
代理机构
代理人
主权项
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