4. Communications: electrical
  5. Systems
  6. Selsyn type

Robert K. McCullough

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Automatic customer number paging system

Data processing: financial – business practice – management – or co – Automated electrical financial or business practice or... – Health care management
Patent

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CRT With internal thermionic valve for high voltage control

Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent

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Method for powering remote visual displays and allowing for data

Communications: electrical – Systems – Selsyn type
Patent

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Skipped number display for customer service control system

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

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Profile ID: LFUS-PAI-P-59714

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