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发明名称
COMMON CONTROL COMMUNICATION SYSTEM
摘要
申请公布号
US3492430(A)
申请公布日期
1970.01.27
申请号
USD3492430
申请日期
1968.11.01
申请人
BELL TELEPHONE LAB. INC.
发明人
FRANK S. VIGLIANTE
分类号
H04Q11/04;(IPC1-7):H04J/;H04M3/00;H04M3/60
主分类号
H04Q11/04
代理机构
代理人
主权项
地址
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