4. Optics: measuring and testing
  5. By shade or color
  6. With color transmitting filter

Atul Khettry

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Chopped radiation source

Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
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Process photometer

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

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Process photometer

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

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Profile ID: LFUS-PAI-P-2393805

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