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发明名称
Filing separator with classification card holding means
摘要
申请公布号
US2886040(A)
申请公布日期
1959.05.12
申请号
US19570657444
申请日期
1957.05.06
申请人
RAACH SR FRANCIS A
发明人
SR. FRANCIS A. RAACH,
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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