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Priority claimed from DE2155651Aexternal-prioritypatent/DE2155651C3/de
Priority claimed from DE19722235421external-prioritypatent/DE2235421C2/de
Application filed by Stog Kg Ind & RohrleitungfiledCriticalStog Kg Ind & Rohrleitung
Application grantedgrantedCritical
Publication of AR197308A1publicationCriticalpatent/AR197308A1/es