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经营范围
发明名称
RINGING CIRCUIT
摘要
申请公布号
GB2187915(A)
申请公布日期
1987.09.16
申请号
GB19870005703
申请日期
1987.03.11
申请人
THE * GENERAL ELECTRIC COMPANY P L C
发明人
MICHAEL ARTHUR CHARLES * ROBSON;PETER ANDREW * CROSS
分类号
H04M19/02;(IPC1-7):H04M19/02
主分类号
H04M19/02
代理机构
代理人
主权项
地址
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