4. Telephonic communications
  5. Substation or terminal circuitry
  6. Visual signalling

Alfred Jahn

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Digital communication system with transmission servers

Telephonic communications – Substation or terminal circuitry – Visual signalling
Patent

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Handover method (roaming) for mobile terminal devices

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate

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Network security software

Data processing: software development – installation – and managem – Software upgrading or updating – Network
Reexamination Certificate

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Network security software

Data processing: software development – installation – and managem – Software upgrading or updating – Network
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1448889

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