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

R. William Graham

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Billing system

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

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Billing system

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

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Billing system

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

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Coating composition having magnetic properties

Compositions – Magnetic – With wax – bitumen – resin – or gum
Reexamination Certificate

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Credit card

Registers – Records
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1399051

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