10 Optometric instruments, namely, instruments for locating grooves, engravings and other indicia on ophthalmic lenses; optometric instruments, namely, instruments for measuring the diameter of ophthalmic lenses, and instruments for locating the optical center of ophthalmic lenses; ophthalmic lens centering devices for optometric use; optometric centering apparatus, and recording substrates provided therewith for recording the position of the eyes with respect to eyeglass frames; optometric instruments, namely, ophthalmometers, corneal reflection pupillometers, automatic refractometers, vertex refractometers, frontoprojectors, focimeters, automatic focimeters, ocular lens meters, refractors, light projectors, sight test projectors, film and slide projection devices for sight tests, illuminated reading scales, projection screens, and projection slides; medical instruments for vision testing, namely, sets of headbands and sets of corrective ophthalmic lenses clippable on the aforesaid headbands for carrying out vision tests; medical equipment, namely, electric cords, sockets, electronic circuits, electrical connectors, electrical adapters, electronic interface buses and electrical outlets for connecting and interfacing optometric optical, measuring, and examining devices; parts and fittings for all the aforesaid goods, namely, mirrors, optical lenses, hoods, tongs, clamps, suction cups, pads and holders for holding and blocking ophthalmic lenses and spectacle frames, feelers and probes for sensing optical lens and spectacle frame rim surfaces, contours and edges all for optometric use