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 JP10894988UpriorityCriticalpatent/JPH0230946U/ja
Priority to US07/384,951prioritypatent/US4962314A/en
Priority to CA000606603Aprioritypatent/CA1319857C/en
Publication of JPH0230946UpublicationCriticalpatent/JPH0230946U/ja