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Priority claimed from SE7208927Aexternal-prioritypatent/SE386892B/en
Priority claimed from AT588975Aexternal-prioritypatent/AT338807B/en
Application filed by Haessle AbfiledCriticalHaessle Ab
Publication of ATA217775ApublicationCriticalpatent/ATA217775A/en
Application grantedgrantedCritical
Publication of AT348538BpublicationCriticalpatent/AT348538B/en