4. Telephonic communications
  5. Audio message storage, retrieval, or synthesis

Van E. Hanson

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Long distance telephone switching system with enhanced subscribe

Telephonic communications – Audio message storage – retrieval – or synthesis
Patent

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Long distance telephone switching system with enhanced subscribe

Telephonic communications – Audio message storage – retrieval – or synthesis – Multilingual system or operation
Patent

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Long distance telephone switching system with enhanced subscribe

Telephonic communications – Audio message storage – retrieval – or synthesis
Patent

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System for limiting the magnitude of sampled data

Electrical audio signal processing systems and devices – Including amplitude or volume control – Automatic
Patent

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Profile ID: LFUS-PAI-P-1207198

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