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Priority claimed from ES1980248575Uexternal-prioritypatent/ES248575Y/es
Priority claimed from ES1981255730Uexternal-prioritypatent/ES255730Y/es
Application filed by Jesus Gasca BurgesfiledCriticalJesus Gasca Burges
Priority claimed from EP81300520Aexternal-prioritypatent/EP0034452B1/de
Application grantedgrantedCritical
Publication of ATE15318T1publicationCriticalpatent/ATE15318T1/de