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

Bruno La Fontaine

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Method and apparatus for improving signal to noise ratio of...

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate

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Phase grating focus monitor using overlay technique

Photocopying – Projection printing and copying cameras – Focus or magnification control
Reexamination Certificate

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Phase-shift-moiré focus monitor

Optics: measuring and testing – Focal position of light source
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Reflective mask for short wavelength lithography

Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Radiation mask
Reexamination Certificate

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Reflective mask for short wavelength lithography

Radiation imagery chemistry: process – composition – or product th – Radiation modifying product or process of making – Radiation mask
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2658819

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