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发明名称
APPARATUS FOR VOICE SERVICES EQUIPMENT
摘要
申请公布号
GB9111947(D0)
申请公布日期
1991.07.24
申请号
GB19910011947
申请日期
1991.06.04
申请人
TELSIS LIMITED
发明人
分类号
H04M3/42;H04M3/487;H04M3/50;H04M3/527;H04M3/533;H04M3/54;H04Q7/22;H04Q11/04
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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