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发明名称
Filing device
摘要
申请公布号
US1869972(A)
申请公布日期
1932.08.02
申请号
US19310520788
申请日期
1931.03.07
申请人
ACCO PRODUCTS, INC.
发明人
KLINE FRED J.
分类号
B42F13/08
主分类号
B42F13/08
代理机构
代理人
主权项
地址
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