4. Telephonic communications
  5. Centralized switching system
  6. Call distribution to operator

Norman J. Donaghue, Jr.

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Digital service unit with secondary channel diagnostics

Multiplex communications – Wide area network – Packet switching
Patent

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Integrated intelligent call blending

Telephonic communications – Centralized switching system – Call distribution to operator
Patent

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Multiple call handling in a call center

Telephonic communications – Centralized switching system – Call distribution to operator
Reexamination Certificate

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Passive bus communication for ISDN

Multiplex communications – Wide area network – Packet switching
Patent

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Passive bus communication using alternate CRC

Excavating
Patent

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Profile ID: LFUS-PAI-P-1325370

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