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发明名称
Slidably actuated loose-leaf binder
摘要
申请公布号
US2612169(A)
申请公布日期
1952.09.30
申请号
US19480032809
申请日期
1948.06.14
申请人
WILSON-JONES CO.
发明人
SEGAL SAMUEL
分类号
B42F13/26
主分类号
B42F13/26
代理机构
代理人
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地址
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