4. Office supplies; artists and teachers materials
  5. Teaching material
  6. Demonstrator or exhibitor

Elaine E. Roberts

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Color communication kits

Optics: measuring and testing – By shade or color
Patent

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Gemstone color communication kits

Special receptacle or package – Combined or convertible – Packaged assemblage or kit
Patent

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Simulated gemstone color guide

Office supplies; artists and teachers materials – Teaching material – Demonstrator or exhibitor
Patent

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Profile ID: LFUS-PAI-P-551531

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