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 JP1989070853UpriorityCriticalpatent/JP2506224Y2/ja
Priority to US07/508,751prioritypatent/US5029051A/en
Publication of JPH0310406UpublicationCriticalpatent/JPH0310406U/ja
Application grantedgrantedCritical
Publication of JP2506224Y2publicationCriticalpatent/JP2506224Y2/ja