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 JP9374290UpriorityCriticalpatent/JPH0450789U/ja
Priority to US07/704,417prioritypatent/US5193856A/en
Priority to EP19910304715prioritypatent/EP0459713A3/en
Publication of JPH0450789UpublicationCriticalpatent/JPH0450789U/ja