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Priority to ES0020053UpriorityCriticalpatent/ES20053Y/en
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Publication of ES20053YpublicationCriticalpatent/ES20053Y/en
Other Liquid Machine Or Engine Such As Wave Power Use
(AREA)
Abstract
A perpetual calendar essentially constituted by a prismatic body of seven faces in each one of which there is a column of numbers that increase from seven in seven corresponding those of the first row to the first seven figures forming the set, a correlative numbering, of 1 at 31 and on said columns figure, in a moving strip or ring, the word, abbreviation or initial of the name of the days of the week so that matching with the number 1, the initial of the day of the week that in each month corresponds, will be established, in column, the days of the month corresponding to each of the week. (Machine-translation by Google Translate, not legally binding)