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经营范围
发明名称
ARTIFICIAL MOUTH
摘要
申请公布号
GB8730346(D0)
申请公布日期
1988.02.03
申请号
GB19870030346
申请日期
1987.12.31
申请人
BRITISH TELECOMMUNICATIONS PLC
发明人
分类号
H04M1/24;H04R1/28
主分类号
H04M1/24
代理机构
代理人
主权项
地址
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