4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Andrew Michael Leach

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Apparatus and method for fully automated closed system pH...

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Chemical analysis
Reexamination Certificate

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Article, device, and method

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate

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Sensor systems and methods for quantification of physical...

Optics: measuring and testing – For light transmission or absorption – Of fluent material
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Profile ID: LFUS-PAI-P-2238506

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