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 JP1975074074UpriorityCriticalpatent/JPS554461Y2/ja
Priority to GB22610/76Aprioritypatent/GB1511755A/en
Priority to US05/691,829prioritypatent/US4057937A/en
Publication of JPS527131UpublicationCriticalpatent/JPS527131U/ja
Application grantedgrantedCritical
Publication of JPS554461Y2publicationCriticalpatent/JPS554461Y2/ja
