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Priority to PT8905288ApriorityCriticalpatent/PT89052B/pt
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Publication of PT89052BpublicationCriticalpatent/PT89052B/pt
Un metodo y aparato para la impenetrabilidad del agua y el gas en un cable y/o paso de tubo en una pared o analogo, utilizando una resina sintetica espumable.
Coaxial cable with composite insulation for telecommunication, method for applying the external insulation of such a cable and apparatus for carrying out this method