9 [ CHARGING DEVICES FOR ACCUMULATORS; LIGHT AND LASER WELDERS, NOT FOR MEDICINAL PURPOSES; ELECTRICAL WELDING AND CUTTING DEVICES, NAMELY, ARC WELDERS; WELDING ELECTRODES, AND CURRENT AND VOLTAGE CONVERTORS, ALL FOR WELDING DEVICES; INVERTER AND PLASMA WELDING CURRENT SOURCES; FREQUENCY CONVERTERS; ELECTRICAL TRANSFORMERS; SOLAR POWER EQUIPMENT, NAMELY, PHOTOVOLTAIC CELLS AND PANELS; ] CONTROL SYSTEMS FOR OPERATING WELDING DEVICES AND ROBOTS COMPRISED PRIMARILY OF COMPUTER SOFTWARE AND HARDWARE; MICROPROCESSOR CONTROL SYSTEMS COMPRISED PRIMARILY OF COMPUTER SOFTWARE FOR USE IN WELDING PROCESSES FOR THE OPERATION OF WELDING DEVICES, ROBOTS AND CHARGING DEVICES FOR ACCUMULATORS, LIGHT AND LASER WELDERS, ELECTRICAL WELDING AND CUTTING DEVICES, WELDING ELECTRODES, FREQUENCY, CURRENT AND VOLTAGE CONVERTERS, INVERTER AND PLASMA WELDING CURRENT SOURCES, AND ELECTRICAL TRANSFORMERS; PRE-RECORDED DATA CARRIERS, NAMELY, CD'S, AUDIO TAPES, VIDEO TAPES AND DVD'S CONTAINING COMPUTER SOFTWARE FOR USE IN WELDING PROCESSES