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Priority claimed from HU80802752Aexternal-prioritypatent/HU180392B/hu
Application filed by Politechnika Ipari SzoevetkezetfiledCriticalPolitechnika Ipari Szoevetkezet
Priority claimed from EP81106959Aexternal-prioritypatent/EP0045526B1/de
Application grantedgrantedCritical
Publication of ATE1661T1publicationCriticalpatent/ATE1661T1/de