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 JP1989149645UpriorityCriticalpatent/JPH0732996Y2/ja
Priority to EP90314199Aprioritypatent/EP0435637B1/en
Priority to CA002033023Aprioritypatent/CA2033023C/en
Priority to DE69017407Tprioritypatent/DE69017407T2/de
Priority to US07/631,486prioritypatent/US5133433A/en
Publication of JPH0388045UpublicationCriticalpatent/JPH0388045U/ja
Application grantedgrantedCritical
Publication of JPH0732996Y2publicationCriticalpatent/JPH0732996Y2/ja