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Priority claimed from JP56096874Aexternal-prioritypatent/JPS57211333A/en
Priority claimed from JP56096879Aexternal-prioritypatent/JPS57211334A/en
Application filed by Olympus Optical CofiledCriticalOlympus Optical Co
Priority claimed from EP82105472Aexternal-prioritypatent/EP0068417B1/en
Application grantedgrantedCritical
Publication of ATE13715T1publicationCriticalpatent/ATE13715T1/en