[ Measuring and testing machines and instruments, namely, millimeter wave radar detectors; electric meters for measuring electric field of electromagnetic wave and electromagnetic field strength; ] optical converters for optical signals and electric signals and structural parts thereof [ ; telecommunication equipment featuring optical transmission by optical fiber cables, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space...

Optical machines and apparatus; Measuring or testing machines and instruments; Electric or magnetic meters and testers; Electric field measuring devices; Light modulators and related parts and accessories; Telecommunication devices and equipment using optical transmission systems; Telecommunication machines and apparatus; Optical communication devices and equipment