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

John Guist

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Electron gun for color picture cathode-ray tube with hexagonal c

Electric lamp and discharge devices – Cathode ray tube – Plural beam generating or control
Patent

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Locking device operative with sequence of electric signals

Communications: electrical – Continuously variable indicating – With meter reading
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Profile ID: LFUS-PAI-P-1157878

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