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 JP12518573UpriorityCriticalpatent/JPS5331139Y2/ja
Priority to US05/517,181prioritypatent/US3956019A/en
Priority to GB45900/74Aprioritypatent/GB1487604A/en
Priority to DE2451331Aprioritypatent/DE2451331C3/de
Publication of JPS5069223UpublicationCriticalpatent/JPS5069223U/ja
Application grantedgrantedCritical
Publication of JPS5331139Y2publicationCriticalpatent/JPS5331139Y2/ja