4. Telecommunications
  5. Radiotelephone system
  6. Message storage or retrieval

Bradford Spencer

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Telephone call manager

Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate

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Telephone call manager

Telecommunications – Radiotelephone system – Message storage or retrieval
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2917329

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