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 JP7491188UpriorityCriticalpatent/JPH061127Y2/ja
Priority to EP19890906461prioritypatent/EP0378691A4/en
Priority to PCT/JP1989/000572prioritypatent/WO1989011832A1/ja
Priority to CA000611768Aprioritypatent/CA1323223C/en
Publication of JPH01178005UpublicationCriticalpatent/JPH01178005U/ja
Priority to US07/892,672prioritypatent/US5269779A/en
Application grantedgrantedCritical
Publication of JPH061127Y2publicationCriticalpatent/JPH061127Y2/ja