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经营范围
发明名称
Improvements in or relating to loose leaf binders
摘要
申请公布号
GB705695(A)
申请公布日期
1954.03.17
申请号
GB19510015088
申请日期
1951.06.26
申请人
LIONEL EDGAR GRIFFITH
发明人
分类号
B42F13/00
主分类号
B42F13/00
代理机构
代理人
主权项
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