发明名称 Sound systems for model railroad locomotives
摘要 On-board model railroad speaker enclosure designs are presented that isolate back and front speaker waves. In one example, a first speaker may be disposed inside of a model steam locomotive tender, and a second speaker disposed inside of the model steam locomotive. Bass sounds and mid-range sounds may be separately directed to the first and second speakers, and isolated from mixing with one another.
申请公布号 US8166887(B2) 申请公布日期 2012.05.01
申请号 US201113152657 申请日期 2011.06.03
申请人 SEVERSON FREDERICK E.;QS INDUSTRIES, INC. 发明人 SEVERSON FREDERICK E.
分类号 A63H19/00;A47B81/06;G08B1/00;G10K1/00 主分类号 A63H19/00
代理机构 代理人
主权项
地址