90710963
May 14, 2021
Jan 3, 2023
Active Trademark
Optical measurement devices, namely, reflectometers and loss meters; Optical measurement devices for measuring the reflectivity or transmittivity of surfaces; Optical measurement devices for cavity-ring-down loss measurements; Optical measurement devices for measuring the reflectivity of highly reflective mirrors, in particular Laser mirrors; Optical measurement devices for characterizing anti-reflective coatings of optical surfaces
Electrical and Scientific Apparatus