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

John M. Albrecht

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Automatic call-back "camp-on" service for communication systems

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

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Electronic game enhancement systems and methods

Amusement devices: games – Including means for processing electronic data – Access or authorization
Reexamination Certificate

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Single access control system and method

Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Utility Patent

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Profile ID: LFUS-PAI-P-1800285

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