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发明名称
IMPROVEMENTS IN OR RELATING TO TELEPHONE APPARATUS
摘要
申请公布号
GB9214618(D0)
申请公布日期
1992.08.19
申请号
GB19920014618
申请日期
1992.07.09
申请人
DATABIT COMPUTER & COMMUNICATION SYSTEMS LTD.
发明人
分类号
H04M3/36;H04Q3/00
主分类号
H04M3/36
代理机构
代理人
主权项
地址
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