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经营范围
发明名称
Telephone exchange and network telephone system
摘要
申请公布号
GB0513408(D0)
申请公布日期
2005.08.03
申请号
GB20050013408
申请日期
2005.06.30
申请人
KABUSHIKI KAISHA TOSHIBA
发明人
分类号
H04L12/64;H04M3/42;H04M7/00
主分类号
H04L12/64
代理机构
代理人
主权项
地址
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