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 JP1989082055UpriorityCriticalpatent/JPH0728706Y2/ja
Priority to CA002018400Aprioritypatent/CA2018400C/en
Priority to GB9012654Aprioritypatent/GB2233170B/en
Priority to US07/534,640prioritypatent/US5044967A/en
Publication of JPH0320884UpublicationCriticalpatent/JPH0320884U/ja
Priority to SG75394Aprioritypatent/SG75394G/en
Priority to HK91994Aprioritypatent/HK91994A/xx
Application grantedgrantedCritical
Publication of JPH0728706Y2publicationCriticalpatent/JPH0728706Y2/ja
