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Priority to ES0008542UpriorityCriticalpatent/ES8542Y/en
Publication of ES8542UpublicationCriticalpatent/ES8542U/en
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Publication of ES8542YpublicationCriticalpatent/ES8542Y/en
A new changeable character sign system, essentially constituted by a plate of any shape and size in which one or more channels, preferably horizontal, with a flat bottom, whose lower wall is perpendicular to said bottom, and the upper oblique to the bottom, are practiced. same, in the sense of bottom to top and outside to inside, and some flat tablets whose section corresponds to the one of the referred channels or channels, and in each of which it appears by its previous face, a letter, number, or sign convenient. (Machine-translation by Google Translate, not legally binding)
ES0008542U1943-03-251943-03-25
System of changeable character signs.
ExpiredES8542Y
(en)
Element for the construction of walls, partitions, pillars and other essential parts in buildings. (Machine-translation by Google Translate, not legally binding)
Rectangular hollow blocks constructed of vibrated concrete or other analogous material mainly intended for construction works and closures (Machine-translation by Google Translate, not legally binding)