Amplifiers; Antennas; Radios; Transponders; Antennas for wireless communications apparatus; Apparatus for transmission of communication; Electron tubes; Electronic and optical communications instruments and components, namely, optical receivers; Filters for radio interference suppression; Lightning arrester equipment; Precision balances; Reflecting discs for wear, for the prevention of traffic accidents; Remote controls for televisions; Road signs, luminous or mechanical; Rotating lights; Tel...