4. Telephonic communications
  5. With usage measurement
  6. Call charge metering or monitoring

Toshihiro Morikawa

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Apparatus and method for permitting temporary use of a...

Telephonic communications – Special services
Reexamination Certificate

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Credit calling service system

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

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Intelligent network having service control node and service swit

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

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Remote maintenance system, monitoring center computer used...

Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-703338

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