Semi-conductor devices, semi-conductor elements, semi-conductor wafers, semi-conductor slices, diodes, transistors, thyristors, diacs, triacs, rectifiers and rectifying arrangements; power supplies and power control arrangements; electrodes, leads, connections, bus-bars, encapsulations, housings, and mountings for any of the foregoing; semi-conductor cooling, regulating and controlling devices and arrangements; electrical and electronic apparatus, instruments, and devices, and parts and fittings therefor included in Class 9

Railway braking apparatus, parts thereof and fittings therefor included in Class 12