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 GB8111513Aexternal-prioritypatent/GB2074436B/en
Application filed by Alan Norman HowardfiledCriticalAlan Norman Howard
Publication of NO813690LpublicationCriticalpatent/NO813690L/no
Publication of NO160822BpublicationCriticalpatent/NO160822B/no
Publication of NO160822CpublicationCriticalpatent/NO160822C/no