Closed circuit television apparatus comprising television cameras and television monitors all for mounting on vehicles or mobile apparatus; electrical or electronic switches, all for use in stopping or reducing the intake of polluted air into the driver and/or passenger compartments of vehicles; fiber optic apparatus for use on vehicles or mobile apparatus; detection apparatus for use on vehicles or mobile apparatus including reverse and side warning ultrasonic, infrared and microwave transmitters and receivers for use in connection with industrial and commercial road and off-road vehicles, mobile apparatus and private automobiles; fresnel-type lenses for fitting to vehicle or mobile apparatus windows to increase the outside-vehicle zone of vision of the driver or operator; bleepers and other audio warning devices for fitting to vehicles or mobile apparatus so as to give audible warning while the vehicle is being reversed, namely, electric horns and audio speakers; electronic in-vehicle parking meters

Repair, maintenance, fitting and installation of parts and fittings for vehicles, including reversing alarms and rearward and sideward detection apparatus