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Individual
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Individual
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Priority to ES0059450UpriorityCriticalpatent/ES59450U/en
Publication of ES59450UpublicationCriticalpatent/ES59450U/en
Valve for drains, characterized in that its down conduit, obtained from a rod, ductile and malleable tubular metal from which it has been cut, has practiced near one end a perimetric bead formed by wrinkling and bending of the walls of the tube, forced to do so by acting on its ends through pressure found. (Machine-translation by Google Translate, not legally binding)
ES0059450U1957-04-091957-04-09Drain valve (Machine-translation by Google Translate, not legally binding)
PendingES59450U
(en)
Tubular metal mold closing device used to manufacture centrifuged concrete tubes of various diameters (Machine-translation by Google Translate, not legally binding)
Improvements in appliances to manufacture laces and collars of forged pipes on thin metal tubes. (Machine-translation by Google Translate, not legally binding)