Telescopes; tachometers; flowmeters for use in measuring the speed of river currents, and fluid currents in pipe, and discharge flowmeters for use in measuring the speed of river currents, and fluid currents in pipe; water level indicator; photogrammetric machines; coordinate measuring instrument used to determine length and longitudinal dimensions; swimming goggles; voltage surge protectors for telecommunication apparatus; computer programs for use in water supply system analysis and control
Electrical and Scientific Apparatus