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
Priority claimed from GB2576158Aexternal-prioritypatent/GB893280A/en
Application filed by Dowty Mining Equipment LtdfiledCriticalDowty Mining Equipment Ltd
Application grantedgrantedCritical
Publication of BE581591RpublicationCriticalpatent/BE581591R/en