4. Telecommunications
  5. Transmitter and receiver at same station
  6. Radiotelephone equipment detail

Joseph D Nguyen

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Data communication system utilizing a cellular phone

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
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Hands-free operation of mobile terminal using wireless...

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
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Portable cordless telephone having an improved ringing device

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
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System and method for upgrading mobile handset

Telecommunications – Radiotelephone system – Programming control
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Profile ID: LFUS-PAI-P-2700268

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