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 JP19121587UpriorityCriticalpatent/JPH0547404Y2/ja
Publication of JPH0193560UpublicationCriticalpatent/JPH0193560U/ja
Priority to US07/423,567prioritypatent/US4933066A/en
Application grantedgrantedCritical
Publication of JPH0547404Y2publicationCriticalpatent/JPH0547404Y2/ja