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 William Gordon LoudenfiledCriticalWilliam Gordon Louden
Priority to NO763134ApriorityCriticalpatent/NO147920C/en
Publication of NO763134LpublicationCriticalpatent/NO763134L/en
Publication of NO147920BpublicationCriticalpatent/NO147920B/en
Publication of NO147920CpublicationCriticalpatent/NO147920C/en