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 filed by Sketchley LtdfiledCriticalSketchley Ltd
Priority to IT23370/80ApriorityCriticalpatent/IT1131950B/it
Publication of IT8023370A0publicationCriticalpatent/IT8023370A0/it
Application grantedgrantedCritical
Publication of IT1131950BpublicationCriticalpatent/IT1131950B/it