4. Music
  5. Instruments
  6. General features

Masanori Katsuta

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Action mechanism for a keyboard of an electronic piano

Music – Instruments – General features
Patent

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Key device for electronic keyboard musical instrument

Music – Instruments – General features
Patent

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Key guide apparatus for electronic musical instrument

Electricity: circuit makers and breakers – Multiple circuit control – Multiple switch
Patent

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Keyboard

Music – Instruments – General features
Patent

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Keyboard device of electronic keyboard musical instrument

Music – Instruments – General features
Patent

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Profile ID: LFUS-PAI-P-230754

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