Audio-receivers and video-receivers; Audio-video receivers; Audio and video cassette recorders; Audio circuit boards; Audio dubbing apparatus; Audio equaliser apparatus; Audio speakers; Audio switching apparatus; Audio transmitter units; Audiovisual receivers; Batteries and battery chargers; Biometric scanners; Burglar alarms; Cellular phone usage detection system comprising a camera and a mobile phone signal receiving device; Cover for an electric door bell that attaches to the doorbell to block its use; Dry cells; Electric door bells; Electric door chimes; Electronic warning bells
Electrical and Scientific Apparatus