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 JP1977090460UpriorityCriticalpatent/JPS5643825Y2/ja
Priority to US05/864,937prioritypatent/US4225641A/en
Priority to GB10/78Aprioritypatent/GB1592641A/en
Publication of JPS5419054UpublicationCriticalpatent/JPS5419054U/ja
Application grantedgrantedCritical
Publication of JPS5643825Y2publicationCriticalpatent/JPS5643825Y2/ja
