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发明名称
摘要
申请公布号
SE319032(B)
申请公布日期
1969.12.22
申请号
SE19640014329
申请日期
1964.11.27
申请人
IBM CORP
发明人
FREY A
分类号
H04L1/00;H04L7/04;(IPC1-7):G06F11/10
主分类号
H04L1/00
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代理人
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