4. Recording, communication, or information retrieval equipment
  5. Video or audio transmission, recording or playback equipment
  6. Radio transceiver

William Y. Son

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Communication handset

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Radio transceiver
Patent

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Communication handset including keypad

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Radio transceiver
Patent

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System and method for automatic device synchronization

Electrical computers and digital processing systems: support – Synchronization of clock or timing signals – data – or pulses
Patent

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System and method for enhanced wireless communication features

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate

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System and method for implementing flexible calling plans

Telecommunications – Radiotelephone system – Usage measurement
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1120522

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