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http://h2minuso.com The H2minusO is a fully customizable Flow Management Device - FMD that uses a combination of proven technology and scientific theories dating back to 1797 and applies it to todays current water conservation concerns. - Venturi Effect - In 1797 Giovanni Battista Venturi was published as the discoverer of Venturi effect, which was described in 1797 - de Laval nozzle - The de Laval nozzle was developed by Swedish inventor Gustaf de Laval in 1888 for use on a... więcej...

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