4. Telegraphy
  5. Systems
  6. Automatic

John W. Spaniol

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Circuit for handling conversation data in a distributed processi

Telegraphy – Systems – Automatic
Patent

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Distributed processing telex exchange

Telegraphy – Systems – Automatic
Patent

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Teletypewriter line keyer with switching current regulator

Pulse or digital communications – Repeaters – Testing
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Profile ID: LFUS-PAI-P-549566

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