4. Telephonic communications
  5. Diagnostic testing, malfunction indication, or electrical...
  6. Of centralized switching system

Francis Cornelius Sommers

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Method and system for processing data records from a telephone d

Telephonic communications – With usage measurement – Call charge metering or monitoring
Patent

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System and method for auditing and reconciliation of...

Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate

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System and method for communication between a telephone data...

Telephonic communications – Special services – Service trigger
Reexamination Certificate

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System and method for testing a telephone data interface system

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of centralized switching system
Patent

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System and method that allows a telephone data repository to...

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

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Profile ID: LFUS-PAI-P-592808

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