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 JP8576290UpriorityCriticalpatent/JP2553560Y2/ja
Priority to US07/741,912prioritypatent/US5236339A/en
Priority to CA002048915Aprioritypatent/CA2048915C/en
Priority to DE69122925Tprioritypatent/DE69122925T2/de
Priority to EP91307413Aprioritypatent/EP0471539B1/en
Priority to KR1019910013956Aprioritypatent/KR950003206B1/ko
Priority to AU82466/91Aprioritypatent/AU636507B2/en
Publication of JPH0444067UpublicationCriticalpatent/JPH0444067U/ja
Application grantedgrantedCritical
Publication of JP2553560Y2publicationCriticalpatent/JP2553560Y2/ja