Optical equipment for filtering or attenuating light or color frequencies and/or intensities, including filters, lenses, eye glasses and downloadable computer software

Preserving Dental Cements, Dental Fillings and the Like which Are Available in Various Colors to Accurately Match the Color Shade of Teeth, to which They Are Applied

Scientific and technological services, namely, scientific research, analysis and testing in the field of the optics, psychology and chemistry of beauty, color and perception

Scientific and technological services, namely, scientific research, analysis and testing in the field of the optics, psychology and chemistry of beauty, color and perception