Sound box with external and internal impact surfaces
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United States of America Patent
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Apr 29, 2008
Grant Date -
N/A
app pub date -
Aug 2, 2006
filing date -
Aug 2, 2006
priority date (Note) -
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Abstract
A percussion assembly including a sound box having upright walls, a seat top, and an interior, the assembly comprising a beater located in the box interior, and means to activate the beater to repeatedly beat against a surface of a wall at said interior.
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