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发明名称
Tone signal repertory dialer
摘要
申请公布号
GB1143125(A)
申请公布日期
1969.02.19
申请号
GB19660055467
申请日期
1966.12.12
申请人
DASA CORPORATION
发明人
分类号
H04M1/276
主分类号
H04M1/276
代理机构
代理人
主权项
地址
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