4. Electrical computers and digital processing systems: multicomput
  5. Computer-to-computer session/connection establishing
  6. Network resources access controlling

Paul D. DeFrain

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Apparatus, method, and computer program for managing...

Electrical computers and digital processing systems: multicomput – Computer-to-computer session/connection establishing – Network resources access controlling
Reexamination Certificate

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Apparatus, method, and computer program for processing audio...

Multiplex communications – Special services – Conferencing
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Profile ID: LFUS-PAI-P-3104536

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