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 JP19940887UpriorityCriticalpatent/JPH01103732U/ja
Priority to CA000586815Aprioritypatent/CA1304480C/en
Priority to US07/290,179prioritypatent/US4977862A/en
Priority to DE8888312342Tprioritypatent/DE3872503T2/de
Priority to EP88312342Aprioritypatent/EP0323210B1/en
Publication of JPH01103732UpublicationCriticalpatent/JPH01103732U/ja
