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发明名称
Data processing card punching
摘要
申请公布号
US3156148(A)
申请公布日期
1964.11.10
申请号
US19610110925
申请日期
1961.05.18
申请人
THE PERKIN-ELMER CORPORATION
发明人
CARR CURTIS E.
分类号
主分类号
代理机构
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