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FR2778010A1
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IMPROVEMENTS TO SAXOPHONES, WITH A VIEW TO IMPROVING THE JUSTICE OF ITS DIESE NOTES
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US4825742A
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Detachable fluidtight assembly system for two interengaging elements of the acoustic tube of a musical wind instrument
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DE3618073A1
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JOINT BOLT OR AXLE GUIDE, ESPECIALLY FOR A MUSICAL INSTRUMENT
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FR89975E
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Device for amplifying the sound of wind instruments
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FR86636E
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Device for amplifying the sound of wind instruments
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FR1378209A
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Device for amplifying the sound of wind instruments
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FR1034063A
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Improvement in wind musical instruments
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FR857008A
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Refinements to wind and mouth musical instruments
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