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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel CorpfiledCriticalNippon Steel Corp
Priority to JP4799476ApriorityCriticalpatent/JPS5843221B2/en
Publication of JPS52131290ApublicationCriticalpatent/JPS52131290A/en
Publication of JPS5843221B2publicationCriticalpatent/JPS5843221B2/en
PURPOSE: To facilitate adjustment and fixation for centering a fixed position of any objectives, by providing for a block a function of adjusting a level.