4. Electric lamp and discharge devices: systems
  5. Discharge device and/or rectifier in the supply circuit
  6. Flashers

Charles Henry Hurst Willis

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Illumination apparatus utilizing light emitting diodes

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Reexamination Certificate

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Lighting control device

Electric lamp and discharge devices: systems – Discharge device and/or rectifier in the supply circuit – Flashers
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2523541

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