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发明名称
ACTIVE DEVICE FOR PABX CONTROL
摘要
申请公布号
GB2254755(A)
申请公布日期
1992.10.14
申请号
GB19920007983
申请日期
1992.04.10
申请人
* THE GENERAL ELECTRIC COMPANY P.L.C.
发明人
CHARLES HENRY RUBIE * LANE
分类号
H04M1/66;H04M3/42;H04M3/54
主分类号
H04M1/66
代理机构
代理人
主权项
地址
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