37 Installation services, namely, installation of computer hardware, data processors and computers, apparatus and instruments for accumulating, monitoring, conducting, adjusting, regulating, switching, storing, controlling, transforming or converting electricity, namely, adapters, cinematographic machines, apparatus and film, apparatus for recording, transmission and reproduction of sound and images, checking apparatus and checking instruments for use in checking laser wavelengths for scientific, industrial and medical purposes, lasers not for medical use, light emitting diode apparatus (LED apparatus) and LED instruments, namely, LED light controls, light conducting filaments, namely optical fibers, photometers, blank magnetic data carriers, measuring apparatus and measuring instruments, namely laser measuring systems, optical apparatus and optical instruments, namely, laser equipment designed for cutting, drilling, marking, engraving and shaping optical lenses for eyeglasses, optical fibers, namely light conducting filaments and cables, optoelectric and optoelectronic apparatus and instruments, namely, optoelectric sensors and semiconductor devices, photographic apparatus and photographic instruments, namely, projectors and unexposed transparencies, signaling apparatus and signaling instruments, namely, sensors for measurement and quality control of material processing by lasers, computer hardware for medical, dermatological, veterinary, cosmetic and aesthetic skin treatment uses, namely, for use with medical patient monitoring equipment, for receiving, processing, transmitting and displaying data; Installation of Medical, surgical, veterinary and dental apparatus and instruments, namely, lasers for surgical and medical use, and lasers for the cosmetic treatment of the face and skin, surgical implants comprising artificial materials, sutures, artificial eyes, limbs and teeth, lenses, namely, intraocular prostheses for surgical implantation, lasers, lights, and LEDs for medical, dermatological, veterinary, cosmetic and aesthetic skin treatment uses, systems comprised of laser, lights and LED components, namely, drug delivery systems, intra-oral dental light systems for medical, dermatological, veterinary, cosmetic and aesthetic skin treatment uses, apparatus and systems for bringing electromagnetic radiation, sound or ultrasound into the human or animal body, namely, ultrasound probes, ultrasound diagnostic apparatus, radiation therapy machines and related software sold as a unit, radiation dosimeters for assessing therapeutic doses of radiation delivered to patients, implantable radiation therapy devices consisting of radioactive seeds and a bioabsorbable carrier assembly, lighting apparatus and lighting instruments for medical, dermatological, veterinary, cosmetic and aesthetic skin treatment purposes, namely, light emitting devices, namely, lamps and LED devices for treatment of a variety of skin conditions, sensory light therapy unit, luminescent labels for medical applications for use during procedures or in medical environments that are dark or with lower light levels, and optoelectric and optoelectronic apparatus and instruments for medical, dermatological, veterinary, cosmetic and aesthetic skin treatment purposes, namely, lamps and LED devices for treatment of a variety of skin conditions