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 JP889281UpriorityCriticalpatent/JPS6126912Y2/ja
Priority to US06/330,175prioritypatent/US4429564A/en
Priority to GB8201395Aprioritypatent/GB2093998B/en
Priority to CA000394732Aprioritypatent/CA1175544A/en
Publication of JPS57122551UpublicationCriticalpatent/JPS57122551U/ja
Application grantedgrantedCritical
Publication of JPS6126912Y2publicationCriticalpatent/JPS6126912Y2/ja
