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经营范围
发明名称
FERNSPRECHLEITUNGSSCHALTUNG.
摘要
申请公布号
DE69103634(D1)
申请公布日期
1994.09.29
申请号
DE19916003634
申请日期
1991.06.12
申请人
NORTHERN TELECOM LTD., MONTREAL, QUEBEC, CA
发明人
MCGINN, DONALD, SCOTT 229 ANN STREET, ALMONTE, ONTARIO K0A 1A0, CA
分类号
H04Q3/42;H04M19/00;(IPC1-7):H04M19/00
主分类号
H04Q3/42
代理机构
代理人
主权项
地址
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