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

Chang Wan Ryoo

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Electronic payment system using multifunctional prepaid...

Registers – Systems controlled by data bearing records – Mechanized store
Reexamination Certificate

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System and method for managing prepaid card

Telephonic communications – With usage measurement – Call charge metering or monitoring
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2296135

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