4. Photography and optical equipment
  5. Optical article not elsewhere specified

Gemological Institute of America (GIA)

Corporate Assignee

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Corporate Assignee

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Reticle for a gemstone microscope

Photography and optical equipment – Optical article not elsewhere specified
Design Patent

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System and method for gemstone cut grading

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

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Profile ID: LFUS-PAI-P-3116985

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