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 JP1989060729UpriorityCriticalpatent/JPH0620274Y2/ja
Priority to US07/521,430prioritypatent/US5086199A/en
Priority to CA002016682Aprioritypatent/CA2016682C/en
Priority to DE4015598Aprioritypatent/DE4015598A1/de
Priority to GB9010837Aprioritypatent/GB2231724B/en
Publication of JPH02150738UpublicationCriticalpatent/JPH02150738U/ja
Application grantedgrantedCritical
Publication of JPH0620274Y2publicationCriticalpatent/JPH0620274Y2/ja
