Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; Mechanisms for coin-operated apparatus; Cash registers; Calculating machines; Computers and computer peripheral devices; Diving suits; Divers' masks; Ear plugs for divers; Nose clips for divers and swimmers; Gloves for divers; Breathing apparatus for underwater swimming; Fire-extinguishing apparatus; Downloadable computer software for the field of ...