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经营范围
发明名称
INTERFACE CIRCUIT
摘要
申请公布号
GB8505516(D0)
申请公布日期
1985.04.03
申请号
GB19850005516
申请日期
1985.03.04
申请人
BRITISH TELECOMMUNICATIONS PLC
发明人
分类号
H04J3/00;H04B7/15;H04B7/185;H04B7/212;H04B7/24
主分类号
H04J3/00
代理机构
代理人
主权项
地址
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