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Priority claimed from FI874991Aexternal-prioritypatent/FI80863C/fi
Priority claimed from DE3809943Aexternal-prioritypatent/DE3809943A1/de
Application filed by Kone OyfiledCriticalKone Oy
Priority claimed from EP88910041Aexternal-prioritypatent/EP0390813B1/de
Application grantedgrantedCritical
Publication of ATE96757T1publicationCriticalpatent/ATE96757T1/de