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 JP1787290UpriorityCriticalpatent/JPH03108583U/ja
Priority to US07/660,334prioritypatent/US5117707A/en
Priority to EP19910301466prioritypatent/EP0443881A3/en
Publication of JPH03108583UpublicationCriticalpatent/JPH03108583U/ja