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.)
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 filedfiledCritical
Priority to JP1988160567UpriorityCriticalpatent/JPH0452514Y2/ja
Priority to US07/431,171prioritypatent/US5022619A/en
Publication of JPH0280245UpublicationCriticalpatent/JPH0280245U/ja
Application grantedgrantedCritical
Publication of JPH0452514Y2publicationCriticalpatent/JPH0452514Y2/ja