Alarm installations and alarms; Audio- and video-receivers; Batteries, electric; Battery chargers; Cables, electric; Computer cursor control devices, namely, computer mouse; Data processing apparatus; Data processing equipment, namely, couplers; Electrical plug device enabling connection and disconnection of power and/or control cables; Electrical transformers; Electro-dynamic apparatus for the remote control of signals; Electronic educational apparatus, namely, communication blocks that mani...