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发明名称
TELEGRAPHENSCHALTUNG
摘要
申请公布号
DE2721819(A1)
申请公布日期
1977.12.08
申请号
DE19772721819
申请日期
1977.05.11
申请人
ING.C.OLIVETTI & C.,S.P.A.
发明人
LEONE,ANTONIO;MANNOCCHI,OSCAR
分类号
H04L1/20;H04L12/26;(IPC1-7):H04L25/20;H04L11/14
主分类号
H04L1/20
代理机构
代理人
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地址
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