Hochfester Stahl für nahtlose, schweissbare Stahlrohre

WP 60 2006 042 403.5 – C22C 38/04. AT 01.08.2006; OT 15.02.2007; PT 23.07.2014. Anm.: Tenaris Connections Ltd., Kingstown, VC. Erf.: Garcia, Alfonso, Izquierdo, Veracruz, Ver. 91697, MX, Carmona, Héctor, Manuel, Quintanilla, Veracruz, Ver. 91697, MX, Anelli, Ettore, Veracruz, Ver. 91697, MX, Tivelli, Marco, Mario, Veracruz, Ver. 91697, MX, di Schino, Andrea, Veracruz, Ver. 91697, MX.