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Priority claimed from DE8307879Uexternal-prioritypatent/DE8307879U1/de
Priority claimed from DE8313203Uexternal-prioritypatent/DE8313203U1/de
Application filed by Peter OpsvikfiledCriticalPeter Opsvik
Application grantedgrantedCritical
Publication of ATE39830T1publicationCriticalpatent/ATE39830T1/de