4. Optics: measuring and testing
  5. Crystal or gem examination

John E. Preedy

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Diamond separation using raman scattering

Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent

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Method for detecting diamonds in remote locations

Optics: measuring and testing – Crystal or gem examination
Patent

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Polymer composition

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent

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Profile ID: LFUS-PAI-P-78260

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