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Individual
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Individual
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Priority to ES0052658UpriorityCriticalpatent/ES52658U/es
Publication of ES52658UpublicationCriticalpatent/ES52658U/es
Un material refractario esponjoso con recubrimiento protector, esencialmente caracterizado por el hecho de estar constituido por un cuerpo endurecido de constitución esponjosa, rodeado externamente por un recubrimiento pelicular continuo de materia plástica.
ES0052658U1956-02-081956-02-08Un material refractario esponjoso con recubrimiento protector
PendingES52658U
(es)