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 David John DoustfiledCriticalDavid John Doust
Priority to NO772110ApriorityCriticalpatent/NO143288C/en
Publication of NO772110LpublicationCriticalpatent/NO772110L/en
Publication of NO143288BpublicationCriticalpatent/NO143288B/en
Publication of NO143288CpublicationCriticalpatent/NO143288C/en