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发明名称
Double action high speed punch
摘要
申请公布号
US2989229(A)
申请公布日期
1961.06.20
申请号
US19580745370
申请日期
1958.06.30
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
BARBEAU RAYMOND A.
分类号
H04L17/08
主分类号
H04L17/08
代理机构
代理人
主权项
地址
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