Audio guiding apparatus, signal level setting method thereof and audio guiding system,申请号KR20090032791-传众专利搜索

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发明名称	Audio guiding apparatus, signal level setting method thereof and audio guiding system
摘要
申请公布号	KR101035059(B1)	申请公布日期	2011.05.19
申请号	KR20090032791	申请日期	2009.04.15
申请人		发明人
分类号	H04M11/02;H04Q9/00	主分类号	H04M11/02
代理机构		代理人
主权项
地址

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