发明名称 SOUNDER FOR MOBILE APPARATUS
摘要 A sounder for use in mobile apparatus comprising an electronic signal generator and a electroacoustic transducer to generate an audible sound, wherein the sound comprises continuous repetitions of a pre-determined section of substantially broadband sound.
申请公布号 US2013156244(A1) 申请公布日期 2013.06.20
申请号 US201013819216 申请日期 2010.08.26
申请人 HANSON-ABBOTT CHRISTOPHER;LEVENTHALL HUBERT GEOFFREY;SANDS KELLY;BRIGADE ELECTRONICS PLC 发明人 HANSON-ABBOTT CHRISTOPHER;LEVENTHALL HUBERT GEOFFREY;SANDS KELLY
分类号 H04R1/02 主分类号 H04R1/02
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