4. Music
  5. Instruments

Sadaaki Ezawa

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Apparatus for drilling pronunciation

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent

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Apparatus for drilling pronunciation

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent

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Card operation indicator for magnetic card drive devices

Registers – Coded record sensors – Particular sensor structure
Patent

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Effect generating system for an electronic musical instrument

Music – Instruments
Patent

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Electronic musical instrument

Music – Instruments
Patent

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Profile ID: LFUS-PAI-P-77137

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