4. Communications: electrical
  5. Continuously variable indicating
  6. With meter reading

Donald Cook

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Battery backup system with remote switch for actuating...

Electricity: battery or capacitor charging or discharging – One cell or battery charges another
Reexamination Certificate

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Monitoring and control system

Communications: electrical – Continuously variable indicating – With meter reading
Patent

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Profile ID: LFUS-PAI-P-1807097

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