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 JP6145487UpriorityCriticalpatent/JPH0541364Y2/ja
Priority to US07/184,563prioritypatent/US4864858A/en
Priority to CA000564927Aprioritypatent/CA1320649C/en
Priority to GB8809591Aprioritypatent/GB2205413B/en
Publication of JPS63168803UpublicationCriticalpatent/JPS63168803U/ja
Application grantedgrantedCritical
Publication of JPH0541364Y2publicationCriticalpatent/JPH0541364Y2/ja