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Priority to ES1969151488UpriorityCriticalpatent/ES151488Y/en
Publication of ES151488UpublicationCriticalpatent/ES151488U/en
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Publication of ES151488YpublicationCriticalpatent/ES151488Y/en
Improved half-joist for trusses, of prestressed type that is characterized by incorporating fixed to the whole thereof, two orders of traction armor in the negative moment zones; of which two orders, the lower one is embedded in the mass of the prefabricated beam and the upper one, fixed by conventional welding to the upper part of the stirrups, is covered by the compression layer in the forging process. (Machine-translation by Google Translate, not legally binding)
ES1969151488U1969-08-291969-08-29
IMPROVED SEMIVIGUETA FOR FRAMES.
ExpiredES151488Y
(en)
Procedure for the obtaining of laminates, bars or ferralla, for armed or pretensed concrete. (Machine-translation by Google Translate, not legally binding)