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Priority to ES0038445UpriorityCriticalpatent/ES38445Y/en
Publication of ES38445UpublicationCriticalpatent/ES38445U/en
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Publication of ES38445YpublicationCriticalpatent/ES38445Y/en
New type of joist for construction, characterized by being composed of two classes of pieces joined together forming a set: some that form the body and the base of the joist with their corresponding fins and a channel on its underside for the formation of the longitudinal nerve of concrete and others that make up the head or pressure layer. (Machine-translation by Google Translate, not legally binding)
ES0038445U1953-10-081953-10-08
New type of joist for construction
ExpiredES38445Y
(en)