4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Photocell controlled circuit

Charles A. Rowell

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Electrostatically-focused image intensifier tube and method of m

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent

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Field emission device

Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
Patent

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Field emission device having component capture frame

Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Patent

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Method of marking glass

Coating processes – Frictional application
Reexamination Certificate

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Profile ID: LFUS-PAI-P-153647

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