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发明名称
SUBSCRIBER/CRAFTSPERSON RINGBACK APPARATUS
摘要
申请公布号
GB2211700(A)
申请公布日期
1989.07.05
申请号
GB19890001373
申请日期
1989.01.23
申请人
* HARRIS CORPORATION
发明人
RICHARD W * FAITH;LEONARD E * CURTIN
分类号
H04M3/30;H04M3/487;H04Q3/72
主分类号
H04M3/30
代理机构
代理人
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地址
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