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Priority claimed from JP60136180Aexternal-prioritypatent/JPS61295079A/ja
Priority claimed from JP60136179Aexternal-prioritypatent/JPS61295075A/ja
Application filed by Canon KkfiledCriticalCanon Kk
Priority claimed from EP19860300322external-prioritypatent/EP0208385B1/de
Application grantedgrantedCritical
Publication of ATE65462T1publicationCriticalpatent/ATE65462T1/de