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OGIPSA OLEODUCTOS GASEODUCTOS E INSTALACIONES P
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OGIPSA OLEODUCTOS GASEODUCTOS E INSTALACIONES P
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Application filed by OGIPSA OLEODUCTOS GASEODUCTOS E INSTALACIONES PfiledCriticalOGIPSA OLEODUCTOS GASEODUCTOS E INSTALACIONES P
Priority to ES1972185383UpriorityCriticalpatent/ES185383Y/es
Publication of ES185383UpublicationCriticalpatent/ES185383U/es
Priority to IT30916/73Aprioritypatent/IT1001626B/it
Application grantedgrantedCritical
Publication of ES185383YpublicationCriticalpatent/ES185383Y/es
Procedimento per la fabbricazione di un tubo scambiatore di calore con superficie provvista di sporgenze radiali saldate e tubo ottenuto con questo procedimento