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发明名称
Loose leaf binders
摘要
申请公布号
US3008470(A)
申请公布日期
1961.11.14
申请号
US19600003531
申请日期
1960.01.20
申请人
IRVING RUBINSTEIN
发明人
RUBINSTEIN IRVING
分类号
B42F13/12
主分类号
B42F13/12
代理机构
代理人
主权项
地址
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