Closed circuit television apparatus comprising television cameras and television monitors all for mounting on vehicles [; electrical or electronic switches, all for use in stopping or reducing the intake of polluted air into the driver and/or passenger compartments of road vehicles]

Parts for motor land vehicles, all being electrical or electronic, namely, closed circuit television apparatus comprising television cameras and television monitors all for mounting on vehicles or mobile apparatus; fiber optic apparatus for use on vehicles or mobile apparatus; detection apparatus for use on vehicles or mobile apparatus including forward, reverse, and side-warning ultrasonic, infrared, and microwave transmitters and receivers; fresnel-type lenses for fitting to vehicle or mobile apparatus windows to increase the outside-vehicle zone of vision of the driver or operator; warning apparatus, namely, back-up alarms for use on land vehicles, while reversing bleepers and other audio warning devices for fitting to vehicles or mobile apparatus so as to give audible warning while the vehicle is being maneuvered or reversed; obstacle detecting sensors for motor vehicles; obstacle indicating devices, namely, electronic control units, audio/visual displays and sensors sold as a unit for use in reversing vehicles