Sound systems for model railroad locomotives
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United States of America Patent
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Jun 7, 2011
Grant Date -
Jan 15, 2009
app pub date -
Jul 18, 2008
filing date -
Mar 8, 2004
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Abstract
On-board model railroad speaker enclosure designs are presented that allow maximum sized speakers, improve impedance matching of sound to the outside of the locomotive, and isolate back and front speaker waves while maintaining the standard horizontal drive-train in model train locomotives.
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