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发明名称
TELEPHONE SUBSCRIBER'S INSTRUMENT
摘要
申请公布号
GB9016603(D0)
申请公布日期
1990.09.12
申请号
GB19900016603
申请日期
1990.07.28
申请人
STC PLC
发明人
分类号
H04M1/08;H04M1/60
主分类号
H04M1/08
代理机构
代理人
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地址
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