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 JP11645274UpriorityCriticalpatent/JPS542292Y2/ja
Priority to CH1227275Aprioritypatent/CH611658A5/xx
Priority to US05/615,475prioritypatent/US3978893A/en
Priority to IT7527661Aprioritypatent/IT1042781B/it
Publication of JPS5143667UpublicationCriticalpatent/JPS5143667U/ja
Application grantedgrantedCritical
Publication of JPS542292Y2publicationCriticalpatent/JPS542292Y2/ja