Electrical and electronic systems, installations, apparatus and instruments; electrical and electronic telecommunications systems, installations, apparatus and instruments; optical telecommunication systems, installations, apparatus and instruments; telecommunications systems, apparatus and instruments; radio and television receiving and transmitting installations, apparatus and instruments; radio navigation apparatus and instruments; apparatus and instruments for recording, amplifying and reproducing sound, video and data; computers and computing apparatus included in this class, computer programmes and data recorded on magnetic tape, magnetic discs, optical devices, holographic devices, and on punched tape and cards; apparatus and instruments in this class, all for public address; insulated electric cables; optical fibre and fibre cables included in Class 9; optical devices, apparatus and Instruments, capacitors, resistors, thermistors, semi-conductors, potentiometers, relays, rectifiers, inductors, all being electrical; printed circuit boards, electronic integrated circuit devices and micro-processor devices, piezo-electric devices included in this class, apparatus and instruments; electric discharge devices, apparatus and instruments (not for light purposes); power supply equipment, parts and fittings included in this class for electrical and electronic components and sub assemblies including all the aforesaid goods

Button receivers

Chemical products for use in industry, especially auxiliary products used in the manufacture of textiles

All the goods,

Cast iron pipes and tubes, both spun and vertically cast; cast iron joint components and cast iron pipe fittings for use therewith, such as junctions and bends,

Electronic calculating apparatus and parts thereof included in this class; telecommunication apparatus and instruments; and insulated electric cables,