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 JP1989041766UpriorityCriticalpatent/JPH0746846Y2/ja
Priority to US07/497,846prioritypatent/US5029811A/en
Priority to EP90303181Aprioritypatent/EP0390458B1/en
Priority to AU52228/90Aprioritypatent/AU621522B2/en
Priority to DE69012866Tprioritypatent/DE69012866T2/de
Priority to CA002013164Aprioritypatent/CA2013164C/en
Priority to KR1019900004395Aprioritypatent/KR0168665B1/ko
Publication of JPH02132179UpublicationCriticalpatent/JPH02132179U/ja
Application grantedgrantedCritical
Publication of JPH0746846Y2publicationCriticalpatent/JPH0746846Y2/ja