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Priority to ES1969154592UpriorityCriticalpatent/ES154592Y/en
Publication of ES154592UpublicationCriticalpatent/ES154592U/en
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Publication of ES154592YpublicationCriticalpatent/ES154592Y/en
Armature for joists, characterized by being constituted by a frame that has in its upper part and also in the lower part, between two rods or rounds of iron, parallel to the longitudinal dimension of the joist, another zig-zag rod that is alternatively joined by welding points, to both upper and lower rods; and the lower one being in the center of symmetry of the beam, and in its interior, determines the impossibility of any bending of the beam by an exact correspondence between tensions and opposing forces. (Machine-translation by Google Translate, not legally binding)
ES1969154592U1969-12-241969-12-24
ARMOR FOR JOISTS.
ExpiredES154592Y
(en)