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 JP17695485UpriorityCriticalpatent/JPH029195Y2/ja
Priority to US06/906,092prioritypatent/US4756060A/en
Priority to CA000518764Aprioritypatent/CA1302685C/en
Publication of JPS6286493UpublicationCriticalpatent/JPS6286493U/ja
Application grantedgrantedCritical
Publication of JPH029195Y2publicationCriticalpatent/JPH029195Y2/ja
