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Priority claimed from SE8702391Aexternal-prioritypatent/SE460600B/en
Priority claimed from SE8702392Aexternal-prioritypatent/SE8702392D0/en
Application filed by Sandvik AbfiledCriticalSandvik Ab
Priority claimed from EP88850174Aexternal-prioritypatent/EP0295228B1/en
Application grantedgrantedCritical
Publication of ATE74116T1publicationCriticalpatent/ATE74116T1/en