1849 - patented his salinometer. 1856 - patent (1930) awarded for an improvement to pumps. 1857 - patent (251) for a garotte-preventing stock awarded but met with some derision.
1849 - patented his salinometer. 1856 - patent (1930) awarded for an improvement to pumps. 1857 - patent (251) for a garotte-preventing stock awarded but met with some derision.