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 JP1979087020UpriorityCriticalpatent/JPS5837989Y2/ja
Priority to US06/142,376prioritypatent/US4361171A/en
Priority to DE19803023146prioritypatent/DE3023146A1/de
Priority to GB8021193Aprioritypatent/GB2051897B/en
Publication of JPS567796UpublicationCriticalpatent/JPS567796U/ja
Application grantedgrantedCritical
Publication of JPS5837989Y2publicationCriticalpatent/JPS5837989Y2/ja
