4. Music
  5. Instruments

F. W. Isen

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Advanced three way call detection system and method using...

Telephonic communications – Call or terminal access alarm or control – Fraud or improper use mitigating or indication
Reexamination Certificate

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Arpeggio generating system and method

Music – Instruments
Patent

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Automatic performing apparatus of electronic musical instrument

Music – Instruments
Patent

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Automatic sound reproduction setting adjustment

Data processing: generic control systems or specific application – Specific application – apparatus or process – Digital audio data processing system
Reexamination Certificate

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Automotive sound system

Electrical audio signal processing systems and devices – Including frequency control – Having automatic equalizer circuit
Patent

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Profile ID: LFUS-PAI-P-218364

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