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Pattern matching apparatus

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Patent

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Phase polarity test instrument and method

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Patent

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Pitch frequency generation system in a speech synthesis system

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Patent

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POLARITY DETERMINING CIRCUIT FOR LOUDSPEAKERS, AN AUDIO...

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Reexamination Certificate

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Processing device for speech synthesis by addition overlapping o

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Patent

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Programmable calculator with verbal indications of stored progra

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Patent

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Programmable sound circuit for electronic games

Electrical audio signal processing systems and devices – Monitoring/measuring of audio devices – Loudspeaker operation
Patent

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