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发明名称
MASSEN/INTERAKTIVES DATENVERMITTLUNGSSYSTEM.
摘要
申请公布号
DE3381974(D1)
申请公布日期
1990.12.06
申请号
DE19833381974
申请日期
1983.08.08
申请人
WESTERN ELECTRIC CO., INC., NEW YORK, N.Y., US
发明人
LUCAS, ALLEN, JAMES, BROOMFIELD, CO 80020, US
分类号
H04L12/64;H04M11/06;H04Q11/04;(IPC1-7):H04L12/48;H04J3/02
主分类号
H04L12/64
代理机构
代理人
主权项
地址
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