Air analysis apparatus; Battery testers; Binoculars; Climate control digital thermostats; Electric resistances; Electrical transformers; Electronic devices for measuring electric current; Frequency meters; Gas testing instruments; Hygrometers; Optical apparatus and instruments, namely, optical ports for underwater photography, dome ports for underwater photography, wet diopters, adapter lenses for underwater photography; Radioactivity measuring apparatus; Surveying instruments

Microscopes and parts thereof, namely, lens; Musical instrument amplifiers; Power amplifiers; Short range radios; Sound amplifiers; Telecommunications transmitters; Tool measuring instruments; Electronic testing equipment, namely, telecommunication line integrity testing apparatus; Solderers' helmets; Transmitters of electronic signals