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发明名称
Telephone recording systems
摘要
申请公布号
GB9916902(D0)
申请公布日期
1999.09.22
申请号
GB19990016902
申请日期
1999.07.19
申请人
INTELLPROP LIMITED
发明人
分类号
H04M3/42;H04M3/48;H04M3/487;H04M3/533;H04M3/58
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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