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发明名称
SISTEMA PERFEZIONATO PER LA TRASMISSIONE DI DATI
摘要
申请公布号
IT1017116(B)
申请公布日期
1977.07.20
申请号
IT19740025103
申请日期
1974.07.12
申请人
IBM CORP
发明人
分类号
H04B1/62;H04B3/06;H04L25/48;H04L25/49;(IPC1-7):H04B/
主分类号
H04B1/62
代理机构
代理人
主权项
地址
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