发明名称 Ceiling loudspeaker
摘要 The present invention relates to a ceiling loudspeaker, primarily including adjustable fixing pieces at sides of speaker housing for installing the loudspeaker on the ceiling in position. Besides, a plurality of hooks are fitted to the speaker set, and tension springs are connected to the hooks while the speaker seat is hooked by the tension springs on the spring seats of the housing. Accordingly, the ceiling loudspeaker is convenient in assembly and stable in connection.
申请公布号 US2004005073(A1) 申请公布日期 2004.01.08
申请号 US20020191132 申请日期 2002.07.08
申请人 LIU HUNG-MING 发明人 LIU HUNG-MING
分类号 H04R1/02;(IPC1-7):H04R1/02 主分类号 H04R1/02
代理机构 代理人
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