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发明名称
Shifting post loose leaf binder
摘要
申请公布号
US2871860(A)
申请公布日期
1959.02.03
申请号
US19560603490
申请日期
1956.08.13
申请人
ARNOLD PAGET GEORGE HERBERT
发明人
PAGET GEORGE HERBERT ARNOLD
分类号
B42F13/12
主分类号
B42F13/12
代理机构
代理人
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