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 JP18674884UpriorityCriticalpatent/JPS61101976U/ja
Priority to US06/797,877prioritypatent/US4662702A/en
Priority to CA000495325Aprioritypatent/CA1233536A/en
Publication of JPS61101976UpublicationCriticalpatent/JPS61101976U/ja
