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经营范围
发明名称
LUIDSPREKEND TELEFOONTOESTEL.
摘要
申请公布号
NL169809(B)
申请公布日期
1982.03.16
申请号
NL19740003286
申请日期
1974.03.12
申请人
NORTHERN TELECOM LIMITED TE MONTREAL, CANADA.
发明人
分类号
H04M9/08;H04M9/10;(IPC1-7):H04M9/10
主分类号
H04M9/08
代理机构
代理人
主权项
地址
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