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Priority to ES113198UpriorityCriticalpatent/ES113198Y/es
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Viga prefabricada perfeccionada esencialmente caracterizada por disponer de unos nervios que a modo de tabiques apoyados en los costados del alma perpendicularmente a la misma unen entre sí las alas superiores e inferiores hasta la anchura total de las mismas formando a ambos costados de la viga celdas.
Fremgangsmåde til fremstilling af i 4-stillingen basisk substituerede 1,2-diphenyl-3-methyl-2-cyclopropancarboxy-butaner eller syreadditionssalte deraf.