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Priority claimed from ES506667Aexternal-prioritypatent/ES8306867A1/es
Priority claimed from ES513092Aexternal-prioritypatent/ES513092A0/es
Application filed by Sigfrid Olofsson, Chester WickenbergfiledCriticalSigfrid Olofsson
Priority claimed from EP82109226Aexternal-prioritypatent/EP0076520B1/de
Application grantedgrantedCritical
Publication of ATE14628T1publicationCriticalpatent/ATE14628T1/de