4. Music
  5. Accessories
  6. Teaching devices

Roger Dunn

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Chord selector for keyboard musical instruments

Music – Accessories – Teaching devices
Patent

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Method, system and computer program for redaction of...

Data processing: presentation processing of document – operator i – Presentation processing of document – Layout
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Pictographic character search method

Image analysis – Pattern recognition – Ideographic characters
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Profile ID: LFUS-PAI-P-912489

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