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Priority claimed from CN198585102855Aexternal-prioritypatent/CN85102855B/zh
Priority claimed from CN85103417Aexternal-prioritypatent/CN85103417B/zh
Application filed by Shanghai New Mechanical TechnofiledCriticalShanghai New Mechanical Techno
Priority claimed from EP19860302250external-prioritypatent/EP0198617B1/de
Application grantedgrantedCritical
Publication of ATE48208T1publicationCriticalpatent/ATE48208T1/de