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发明名称
IMPROVEMENTS IN/RELATING TO TELEPHONE ANSWERING MACHINES
摘要
申请公布号
GB8824036(D0)
申请公布日期
1988.11.23
申请号
GB19880024036
申请日期
1988.10.13
申请人
AMERICAN TELEPHONE & TELEGRAPH CO
发明人
分类号
H04M1/65;(IPC1-7):H04M1/64
主分类号
H04M1/65
代理机构
代理人
主权项
地址
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