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 JP10088485UpriorityCriticalpatent/JPS629007U/ja
Priority to US06/880,749prioritypatent/US4727799A/en
Priority to GB8616005Aprioritypatent/GB2179732B/en
Publication of JPS629007UpublicationCriticalpatent/JPS629007U/ja
