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发明名称
Rauschverminderung in Sprachübertragungsschaltungen.
摘要
申请公布号
DE68918914(T2)
申请公布日期
1995.02.23
申请号
DE19896018914T
申请日期
1989.09.27
申请人
NORTHERN TELECOM LTD., MONTREAL, QUEBEC, CA
发明人
BARNES, GEORGE JOHN PRESTON, HARLOW ESSEX CM17 0MF, GB;TESTER, NORMAN WILLIAM, HARLOW ESSEX, GB
分类号
H04M1/58;H04M1/60;(IPC1-7):H04M1/60
主分类号
H04M1/58
代理机构
代理人
主权项
地址
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