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 JP2661890UpriorityCriticalpatent/JPH03117474U/ja
Priority to US07/664,841prioritypatent/US5160754A/en
Priority to GB9105479Aprioritypatent/GB2241863B/en
Publication of JPH03117474UpublicationCriticalpatent/JPH03117474U/ja