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发明名称
Improvements relating to loose leaf filing devices
摘要
申请公布号
GB839050(A)
申请公布日期
1960.06.29
申请号
GB19570027854
申请日期
1957.09.04
申请人
C. H. HARE & SON LIMITED
发明人
MORTIMORE CHARLES HENRY
分类号
B42F13/02
主分类号
B42F13/02
代理机构
代理人
主权项
地址
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