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Musical notation system
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Patent number 7,589,271
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Issue date Sep 15, 2009
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Virtuosoworks, Inc.
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Jack Marius Jarrett
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Musical notation system
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Patent number 7,439,441
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Issue date Oct 21, 2008
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Virtuosoworks, Inc.
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Jack Marius Jarrett
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Musical notation system
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Patent number 7,105,733
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Issue date Sep 12, 2006
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Virtuosoworks, Inc.
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Jack Marius Jarrett
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G10 - MUSICAL INSTRUMENTS ACOUSTICS