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

David Zey

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Method and article of manufacture for establishing local...

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

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System and method of manufacture for establishing local...

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

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Profile ID: LFUS-PAI-P-2717771

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