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Priority to ES201472ApriorityCriticalpatent/ES201472A1/en
Publication of ES201472A1publicationCriticalpatent/ES201472A1/en
Improvements in the construction of roofs of buildings essentially characterized by the assembly on the surface to be covered with channels constituted by pieces of vibrated concrete that form the base for supporting the covering elements. (Machine-translation by Google Translate, not legally binding)
ES201472A1952-01-171952-01-17Improvements in the construction of building coverings (Machine-translation by Google Translate, not legally binding)
ExpiredES201472A1
(en)
System of combinable ceramic pieces for the construction of ceilings in various buildings (Machine-translation by Google Translate, not legally binding)