ES154894A3 - Perfeccionamientos en la construccion de techos, empleando elementos de tierra cocida formando vigas y viguetas de cemento armado
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Perfeccionamientos en la construccion de techos, empleando elementos de tierra cocida formando vigas y viguetas de cemento armado
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ES154894A1941-11-081941-11-08Perfeccionamientos en la construccion de techos, empleando elementos de tierra cocida formando vigas y viguetas de cemento armado
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