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发明名称
Improvements in loose leaf ledger binders
摘要
申请公布号
GB661455(A)
申请公布日期
1951.11.21
申请号
GB19490026635
申请日期
1949.10.17
申请人
ERNEST JAMES BLOORE
发明人
分类号
B42D17/00;B42F17/02
主分类号
B42D17/00
代理机构
代理人
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地址
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