SOUND-TRANSMITTING APPARATUS,申请号EP20010921591-传众专利搜索

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发明名称	SOUND-TRANSMITTING APPARATUS
摘要
申请公布号	EP1279270(A1)	申请公布日期	2003.01.29
申请号	EP20010921591	申请日期	2001.04.17
申请人	SAFETALK LIMITED	发明人	KEAR, STEPHEN
分类号	H04R1/10;H04M1/02;H04M1/05;H04M1/60;(IPC1-7):H04M1/05	主分类号	H04R1/10
代理机构		代理人
主权项
地址

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