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发明名称
Testing telephone lines
摘要
申请公布号
GB2176970(A)
申请公布日期
1987.01.07
申请号
GB19850015598
申请日期
1985.06.20
申请人
* STC PLC
发明人
BERNARD STUART EARL * MILLS
分类号
H04M3/30;(IPC1-7):H04M3/26
主分类号
H04M3/30
代理机构
代理人
主权项
地址
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