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.)
Koyo Seiko Co Ltd
Original Assignee
Koyo Seiko 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 Koyo Seiko Co LtdfiledCriticalKoyo Seiko Co Ltd
Priority to JP13212382ApriorityCriticalpatent/JPS5923181A/ja
Publication of JPS5923181ApublicationCriticalpatent/JPS5923181A/ja
Publication of JPH0221478B2publicationCriticalpatent/JPH0221478B2/ja
