ECHO CANCELER DEVICE,申请号JP19970120572-传众专利搜索

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发明名称	ECHO CANCELER DEVICE
摘要
申请公布号	JPH10313269(A)	申请公布日期	1998.11.24
申请号	JP19970120572	申请日期	1997.05.12
申请人	OKI ELECTRIC IND CO LTD	发明人	ARIYAMA YOSHIHIRO;TAKADA SHINSUKE
分类号	H04M1/60;H04B3/23;H04M9/08;(IPC1-7):H04B3/23	主分类号	H04M1/60
代理机构		代理人
主权项
地址

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