4. Pulse or digital communications
  5. Repeaters
  6. Testing

Alfred G. Johanson

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Data communication apparatus and method with low power standby m

Pulse or digital communications – Repeaters – Testing
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Programmable electronic parking meter with communications interf

Check-actuated control mechanisms – Including value accumulator for plural checks – Having solid state circuitry
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Profile ID: LFUS-PAI-P-1468649

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