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发明名称
NACHRICHTENUEBERTRAGUNGSSYSTEM MIT EINER ZENTRALSTATION UND MEHREREN UNTERSTATIONEN
摘要
申请公布号
DE2231308(A1)
申请公布日期
1973.01.11
申请号
DE19722231308
申请日期
1972.06.26
申请人
INTERNATIONAL BUSINESS MACHINES CORP., ARMONK, N.Y. (V.ST.A.)
发明人
FEATHERSTON, JOHN RICHARD, TUCSON, ARIZ. (V.ST.A.)
分类号
H04B1/50;H04L1/00;(IPC1-7):H04B7/00
主分类号
H04B1/50
代理机构
代理人
主权项
地址
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