4. Music
  5. Instruments
  6. Wind

Karl P. Ahrens

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Fipple flutes having improved airways

Music – Instruments – Wind
Reexamination Certificate

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Flutes with multiple chambers that share compound bisected...

Music – Instruments – Wind
Reexamination Certificate

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Ocarinas with an inner liner and an outer shell

Music – Instruments – Wind
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2537248

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