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Universal joint
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Patent number 8,556,735
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Issue date Oct 15, 2013
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Trick Percussion Products, Inc.
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Michael Dorfman
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Drum pedal with optical sensor
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Patent number 8,278,541
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Issue date Oct 2, 2012
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Trick Percussion Products, Inc.
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Michael Dorfman
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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U-joint for double pedal
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Patent number 7,633,000
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Issue date Dec 15, 2009
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Trick Percussion Products, inc.
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Michael Dorfman
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Drum pedal
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Patent number 7,456,351
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Issue date Nov 25, 2008
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Trick Percussion Products, Inc.
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Michael Dorfman
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Drum pedal
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Patent number 7,405,352
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Issue date Jul 29, 2008
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Trick Percussion Products, Inc.
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Michael Dorfman
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Adjustable bass drum beater
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Patent number 7,211,720
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Issue date May 1, 2007
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Trick Percussion Products, Inc.
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Michael Dorfman
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Strainer for a drum
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Patent number 6,846,978
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Issue date Jan 25, 2005
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Trick Percussion Products, Inc.
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Michael Dorfman
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G10 - MUSICAL INSTRUMENTS ACOUSTICS