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 JP3676288UpriorityCriticalpatent/JPH01140546U/ja
Priority to US07/324,292prioritypatent/US4920375A/en
Priority to EP19890302615prioritypatent/EP0333481A3/en
Publication of JPH01140546UpublicationCriticalpatent/JPH01140546U/ja