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 JP18620287UpriorityCriticalpatent/JPH0327933Y2/ja
Priority to US07/280,020prioritypatent/US4954203A/en
Priority to EP88120425Aprioritypatent/EP0319946A3/en
Priority to EP91114339Aprioritypatent/EP0461682A1/en
Publication of JPH0191716UpublicationCriticalpatent/JPH0191716U/ja
Application grantedgrantedCritical
Publication of JPH0327933Y2publicationCriticalpatent/JPH0327933Y2/ja