4. Telecommunications
  5. Radiotelephone system
  6. Zoned or cellular telephone system

Ernst Langmantel

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Cordless telephone system with a private automatic branch exchan

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent

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Method for connection handling in communication systems with wir

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
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Multi-cell radio system with PBX periphery assemblies

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
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Profile ID: LFUS-PAI-P-913244

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