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发明名称
Tabulating card reproducing punch
摘要
申请公布号
US2965169(A)
申请公布日期
1960.12.20
申请号
US19570687015
申请日期
1957.09.30
申请人
BERGHELL ROBIN C
发明人
BERGHELL ROBIN C.
分类号
主分类号
代理机构
代理人
主权项
地址
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