SWAN PERCUSSION, LLC
SWAN PERCUSSION, LLC Patent applications | ||
Patent application number | Title | Published |
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20100212474 | MUSICAL SYSTEM - A musical system. At least some of the illustrative embodiments are systems including: a frame with an interior cavity, a tuning system coupled within the interior cavity of the frame, the tuning system configured to be accessed by way of an aperture through of the frame, and a drum head retained at a first end of the frame, wherein the tuning system configured to apply uniform pressure that circumscribes an axis of interior surface of the drum head. | 08-26-2010 |