Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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
Application filed by Asahi Kogaku Kogyo Co LtdfiledCriticalAsahi Kogaku Kogyo Co Ltd
Priority to JP62179698ApriorityCriticalpatent/JPS6422242A/ja
Publication of JPS6422242ApublicationCriticalpatent/JPS6422242A/ja
Publication of JPH0349489B2publicationCriticalpatent/JPH0349489B2/ja