4. X-ray or gamma ray systems or devices
  5. Specific application
  6. Absorption

Richard D. Pollak

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Method of processing gemstones to enhance their color

X-ray or gamma ray systems or devices – Specific application – Absorption
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Process for the color enhancement of gemstones

Coating processes – Solid particles or fibers applied – Uniting particles to form continuous coating with...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1717432

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