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发明名称
Automatic telephone switching interface
摘要
申请公布号
GB9406872(D0)
申请公布日期
1994.06.01
申请号
GB19940006872
申请日期
1994.04.07
申请人
DEAS, ALEXANDER R
发明人
分类号
H04M1/60
主分类号
H04M1/60
代理机构
代理人
主权项
地址
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