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 GB60177Aexternal-prioritypatent/GB1559302A/en
Priority claimed from DK7478Aexternal-prioritypatent/DK145219C/da
Application filed by Gestetner LtdfiledCriticalGestetner Ltd
Priority to DK236879ApriorityCriticalpatent/DK236879A/da
Publication of DK236879ApublicationCriticalpatent/DK236879A/da