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发明名称
Punching device
摘要
申请公布号
US3137441(A)
申请公布日期
1964.06.16
申请号
US19610162292
申请日期
1961.12.26
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
FORSYTH BRUCE W.;MORING FRED
分类号
主分类号
代理机构
代理人
主权项
地址
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