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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators 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 NGK Insulators LtdfiledCriticalNGK Insulators Ltd
Priority to JP17039488UpriorityCriticalpatent/JPH0649744Y2/ja
Publication of JPH0289145UpublicationCriticalpatent/JPH0289145U/ja
Application grantedgrantedCritical
Publication of JPH0649744Y2publicationCriticalpatent/JPH0649744Y2/ja
