ELECTRIC SOLDERING APPARATUS, NAMELY, SOLDERING IRONS, SOLDERING TIPS, IRON HOLDERS, HEATING ELEMENTS, TWEEZERS, SMOKE ABSORPTION PIPES, CLEANING SPONGES, TIP HOLDERS, TIP CLEANERS, ELECTRIC CONTROL SYSTEMS COMPRISING ONE OR MORE TRANSFORMERS, AND ELECTRIC DESOLDERING APPARATUS, NAMELY, DESOLDERING IRONS, DESOLDERING GUNS, IRON HOLDERS, FILTER PIPES, FILTERS, CLEANING PINS, NOZZLES, CLEANING DRILLS, AND HEATING ELEMENTS