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 JP3066681UpriorityCriticalpatent/JPS6121916Y2/ja
Priority to US06/322,912prioritypatent/US4410063A/en
Priority to DE3148070Aprioritypatent/DE3148070C2/de
Priority to GB8200665Aprioritypatent/GB2098025B/en
Priority to CA000394716Aprioritypatent/CA1168988A/en
Publication of JPS57143780UpublicationCriticalpatent/JPS57143780U/ja
Application grantedgrantedCritical
Publication of JPS6121916Y2publicationCriticalpatent/JPS6121916Y2/ja