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 JP18704987UpriorityCriticalpatent/JPH0191875U/ja
Priority to US07/188,535prioritypatent/US4891952A/en
Publication of JPH0191875UpublicationCriticalpatent/JPH0191875U/ja
Priority to US07/461,628prioritypatent/US5033272A/en