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发明名称
Improvements in or relating to index-card and like assorting devices
摘要
申请公布号
GB393681(A)
申请公布日期
1933.06.15
申请号
GB19320000621
申请日期
1932.01.08
申请人
HERBERT EDWARD ELSDEN;STANLEY HENRY GORBOLD
发明人
分类号
B42F17/02
主分类号
B42F17/02
代理机构
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