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Priority claimed from JP60018771Aexternal-prioritypatent/JPH0783043B2/en
Priority claimed from JP60023072Aexternal-prioritypatent/JP2568488B2/en
Application filed by Olympus Optical CofiledCriticalOlympus Optical Co
Priority claimed from EP86101375Aexternal-prioritypatent/EP0193001B1/en
Application grantedgrantedCritical
Publication of ATE42004T1publicationCriticalpatent/ATE42004T1/en