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发明名称
Label and index holder
摘要
申请公布号
US2158402(A)
申请公布日期
1939.05.16
申请号
US19370144958
申请日期
1937.05.26
申请人
CHAMBERLIN COLEMAN R
发明人
CHAMBERLIN COLEMAN R.
分类号
G09F3/20
主分类号
G09F3/20
代理机构
代理人
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