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Publication of ES431002A1publicationCriticalpatent/ES431002A1/en
Improvements in height meters, characterized in that each meter is provided with a base provided with a vertical guide carrying a slide provided with an indicator needle; and a threaded screw arranged parallel to the guide, connected to the slide and capable of being turned by hand, all this so that the slide can be displaced along the guide by turning the screw and its height can be read in signs associated with the guide. (Machine-translation by Google Translate, not legally binding)
ES431002A1973-10-091974-10-08Improvements in height meters. (Machine-translation by Google Translate, not legally binding)
ExpiredES431002A1
(en)
Improvements in the construction of barometers with adjustable scales, mutually for the indication of time and barometric pressure. (Machine-translation by Google Translate, not legally binding)