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发明名称
IMPROVEMENTS IN OR RELATING TO TELEPHONE SETS
摘要
申请公布号
HK36779(A)
申请公布日期
1979.06.15
申请号
HK19790000367
申请日期
1979.06.07
申请人
PLESSEY CO LTD
发明人
PRINCE D
分类号
H04M1/08;(IPC1-7):H04M1/08
主分类号
H04M1/08
代理机构
代理人
主权项
地址
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