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.)
OI SEISAKUSHO CO Ltd
Original Assignee
OI SEISAKUSHO 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 OI SEISAKUSHO CO LtdfiledCriticalOI SEISAKUSHO CO Ltd
Priority to JP57102798ApriorityCriticalpatent/JPS58222261A/ja
Publication of JPS58222261ApublicationCriticalpatent/JPS58222261A/ja
Publication of JPS6262231B2publicationCriticalpatent/JPS6262231B2/ja