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Priority to ES1973189384UpriorityCriticalpatent/ES189384Y/en
Publication of ES189384UpublicationCriticalpatent/ES189384U/en
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Publication of ES189384YpublicationCriticalpatent/ES189384Y/en
Equipment feeders-launchers of water, perfected, according to whose improvements, it is determined that the power to the lance monitors or impellers of water at a distance, is verified through a hydrant unit that is if a partly buried and possesses in said this zone hides an escape valve, capable of acting automatically when the main inlet valve closes for any reason, to allow the evacuation of water located inside the body, which prevents the eventual solidification of this element and, therefore, constitutes an antifreeze device that ensures the use of the element even in subzero temperatures. (Machine-translation by Google Translate, not legally binding)
ES1973189384U1973-03-061973-03-06
FEEDING EQUIPMENT - WATER LAUNCHERS, PERFECTED.
ExpiredES189384Y
(en)