AN AUTOMATIC VOLUME CONTROL APPARATUS ACCORDING TO A NOISE-PERCEPTION OF TRAIN OR STATION BROADCASTING SYSTEM,申请号KR20040084280-传众专利搜索

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发明名称	AN AUTOMATIC VOLUME CONTROL APPARATUS ACCORDING TO A NOISE-PERCEPTION OF TRAIN OR STATION BROADCASTING SYSTEM
摘要
申请公布号	KR100513887(B1)	申请公布日期	2005.09.01
申请号	KR20040084280	申请日期	2004.10.21
申请人	SUNG WOO ELECTRONICS CO., LTD.;SEOUL METROPOLITAN SUBWAY CORPORATION	发明人	MAENG, MYUNG JAE;AHN, CHUNG MO
分类号	H04H20/62;H03G7/06	主分类号	H04H20/62
代理机构		代理人
主权项
地址

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