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Guido Van den Berghe
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Aartselaar, BE
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last 30 patents
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Patent Grant
Method and apparatus for playing in synchronism with a CD an automa...
Patent number
7,612,277
Issue date
Nov 3, 2009
QRS Music Technologies, Inc.
Andrew P. Weir
G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Patent Grant
Method and apparatus for playing in synchronism with a DVD an autom...
Patent number
7,507,900
Issue date
Mar 24, 2009
QRS Music Technologies, Inc.
Andrew P. Weir
G10 - MUSICAL INSTRUMENTS ACOUSTICS