4. Telephonic communications
  5. Plural exchange network or interconnection
  6. With interexchange network routing

Petter Johnsen

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Distributed electronic data processing

Electrical computers and digital processing systems: multicomput – Distributed data processing
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Method for improving a network structure, especially an IN...

Telephonic communications – Plural exchange network or interconnection – With interexchange network routing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2573657

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