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经营范围
发明名称
ELECTRONIC SPEECH FACILITY
摘要
申请公布号
GB8426058(D0)
申请公布日期
1984.11.21
申请号
GB19840026058
申请日期
1984.10.16
申请人
DICKINSON, C W
发明人
分类号
H04R1/08
主分类号
H04R1/08
代理机构
代理人
主权项
地址
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