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Priority claimed from SE8804448Aexternal-prioritypatent/SE8804448L/en
Application filed by Humanteknik AbfiledCriticalHumanteknik Ab
Priority claimed from EP89850427Aexternal-prioritypatent/EP0374115B1/en
Application grantedgrantedCritical
Publication of ATE91532T1publicationCriticalpatent/ATE91532T1/en