4. Telecommunications
  5. Radiotelephone system
  6. Auxiliary data signaling

Rudolf Ritter

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Billing process and system in a telecommunication network

Data processing: financial – business practice – management – or co – Automated electrical financial or business practice or... – Accounting
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Call-back method for telecommunications and devices adapted...

Telephonic communications – Special services – Reserved call
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Communications system and control unit suitable therefor

Communications: electrical – Continuously variable indicating – With meter reading
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Communications system, communication method and...

Telecommunications – Having single-channel telephone carrier – Over power line
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Flat screen and mobile telephone with flat screen

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
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Profile ID: LFUS-PAI-P-1500885

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