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发明名称
Filing device
摘要
申请公布号
US2333615(A)
申请公布日期
1943.11.02
申请号
US19420439695
申请日期
1942.04.20
申请人
ACCO PRODUCTS, INC.
发明人
ZWICKEL ELMER L.
分类号
B42F13/02
主分类号
B42F13/02
代理机构
代理人
主权项
地址
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