4. Radiant energy
  5. Luminophor irradiation
  6. With ultraviolet source

Christopher Mark Welbourn

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Distinguishing natural from synthetic diamonds

Radiant energy – Luminophor irradiation – With ultraviolet source
Patent

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Examining a diamond

Optics: measuring and testing – Inspection of flaws or impurities
Patent

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Examining a diamond

Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
Patent

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Method and apparatus for examining an object

Optics: measuring and testing – Crystal or gem examination
Patent

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Profile ID: LFUS-PAI-P-1020733

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