4. Telecommunications
  5. Radiotelephone system
  6. Security or fraud prevention

SunMan Engineering, Inc.

Corporate Assignee

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Audio scrambler and recorder for cellular telephones

Telecommunications – Radiotelephone system – Security or fraud prevention
Reexamination Certificate

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Voice-over-IP device using dial-up modem

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

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Voice-over-IP telephone devices and systems

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

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Profile ID: LFUS-PAI-P-3050174

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