ES369865A1 - Perfeccionamientos en la construccion de vigas y paneles- vigas huecos para la formacion de forjados de estructuras horizontales.
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Perfeccionamientos en la construccion de vigas y paneles- vigas huecos para la formacion de forjados de estructuras horizontales.
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YUS ORTIN
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YUS ORTIN
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ES369865A1969-07-241969-07-24Perfeccionamientos en la construccion de vigas y paneles- vigas huecos para la formacion de forjados de estructuras horizontales.
ExpiredES369865A1
(es)