4. Telecommunications
  5. Radiotelephone system
  6. Including private cordless extension system

Mark C. Jensen

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Method and apparatus for providing call screening on...

Telecommunications – Radiotelephone system – Including private cordless extension system
Reexamination Certificate

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Remotely selecting an economical communications transmission...

Telephonic communications – With usage measurement – Call charge metering or monitoring
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2431190

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