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发明名称
Posting tray for loose leaf filing systems
摘要
申请公布号
US2877773(A)
申请公布日期
1959.03.17
申请号
US19560593149
申请日期
1956.06.22
申请人
PERCY JONES (TWINLOCK) LIMITED
发明人
SEWELL FREDERICK ROBERT
分类号
B42F17/02
主分类号
B42F17/02
代理机构
代理人
主权项
地址
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