4. Telecommunications
  5. Radiotelephone system
  6. Zoned or cellular telephone system

John R. Sorenson

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Method and apparatus for acquiring emergency service in a...

Telecommunications – Radiotelephone system – Emergency or alarm communication
Reexamination Certificate

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Method and apparatus for fast and random access of variable...

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

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Method and apparatus for fast and random access of variable...

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

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Method and apparatus for performing preferred system selection

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent

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Method and apparatus for performing preferred system selection

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1500822

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