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经营范围
发明名称
VOICE COMMUNICATION DEVICE PROVIDED WITH ECHO CANCELER
摘要
申请公布号
EP0537370(A4)
申请公布日期
1993.11.18
申请号
EP19920909994
申请日期
1992.04.30
申请人
KABUSHIKI KAISHA TOSHIBA;TOSHIBA AVE CO., LTD
发明人
UMEMOTO, YUJI;OTSUKA, KOKI;OKUDA, YUJI;AKAMINE, MASAMI;ITO, KOICHI
分类号
H04M9/08;(IPC1-7):H04B3/23
主分类号
H04M9/08
代理机构
代理人
主权项
地址
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