[ Optical apparatus and instruments, namely, microscopes, magnifying glasses, body-tubes for microscopes and lens barrels for microscopes, optical mirrors and lenses for use as reflectors, prisms, stereoscopes, optical lenses; measuring apparatus and instruments, namely, luminoflux meters, photometers, interferometers; electrical and magnetic measurement device and apparatus, namely, phase indicators, frequency meters and oscillation meters and transducers and oscilloscopes; ] cables for coax...