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

James G. Phalen

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Electromechanical grating display system with segmented...

Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate

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Electromechanical grating display system with spatially...

Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate

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High-contrast display system with scanned conformal grating...

Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate

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Imaging system with programmable spectral switch

Optics: measuring and testing – By shade or color – With color transmitting filter
Reexamination Certificate

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Laser diode and photodetector circuit assembly

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

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Profile ID: LFUS-PAI-P-999562

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