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Individual
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Individual
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Priority to ES1973198307UpriorityCriticalpatent/ES198307Y/en
Publication of ES198307UpublicationCriticalpatent/ES198307U/en
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Publication of ES198307YpublicationCriticalpatent/ES198307Y/en
Prefabricated joist, perfected, characterized in that it constitutes a prestressed concrete spar, of flattened rectangular section, which nevertheless has widely beveled its upper longitudinal edges according to both inclined planes, in the determination of lateral faces whose lower longitudinal strip appears vertical while another greater longitudinal upper strip is inclined in ramp inward to hold intercalary wedge-like between two beams to the vaults constituted with corresponding sides; in the longitudinal central strip of its upper face they have constituted a deep channel to improve the adherence and grip of the concrete layer that is deposited in the work on the joist, completing it. (Machine-translation by Google Translate, not legally binding)