Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP4259280Uexternal-prioritypatent/JPS6139441Y2/ja
Priority claimed from JP4610780Aexternal-prioritypatent/JPS56143132A/ja
Application filed by Olympus Optical Co., Ltd.filedCriticalOlympus Optical Co., Ltd.
Priority claimed from EP81301006Aexternal-prioritypatent/EP0037191B1/de
Application grantedgrantedCritical
Publication of ATE4410T1publicationCriticalpatent/ATE4410T1/de