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.)
Topcon Corp
Tokyo Optical Co Ltd
Original Assignee
Tokyo Kogaku Kikai KK
Tokyo Optical 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 Tokyo Kogaku Kikai KK, Tokyo Optical Co LtdfiledCriticalTokyo Kogaku Kikai KK
Priority to JP6968674ApriorityCriticalpatent/JPS5522094B2/ja
Publication of JPS51329ApublicationCriticalpatent/JPS51329A/ja
Publication of JPS5522094B2publicationCriticalpatent/JPS5522094B2/ja