Electrolysers; fire extinguishing apparatus; protection devices for personal use against accidents, namely inflatable floatation devices, gloves for protection against accidents, clothing for protection against accidents; spectacles; mechanisms for counter-operated apparatus for use in building occupancy counts; surveying apparatus and instruments; automation apparatus for power plant, namely computers and downloadable software for use in measuring energy output; theft prevention installations, electric, namely electric anti-theft system comprised of a bar code scanner that allows manufacturers to temporarily disable electronic goods during the manufacturing process and allows retailers to enable such goods upon receiving the purchase price for the goods