Classification Information
Headphones; Loudspeakers; Megaphones; Microphones; Acoustic membranes; Audio-receivers and video-receivers; Battery chargers; Cabinets for loudspeakers; Data processing equipment, namely, couplers; Electric buzzers; Electric door bells; Horns for loudspeakers; Sound recording apparatus; Sound transmitting apparatus; Tone arms for record players
Electrical and Scientific Apparatus