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发明名称
METHOD AND COMMUNICATION DEVICE FOR PROVIDING TELEPHONE CONFERENCES
摘要
申请公布号
EP2191637(B1)
申请公布日期
2013.06.05
申请号
EP20080787521
申请日期
2008.08.27
申请人
SIEMENS ENTERPRISE COMMUNICATIONS GMBH & CO. KG
发明人
LEDERER, THOMAS
分类号
H04M3/56
主分类号
H04M3/56
代理机构
代理人
主权项
地址
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