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 CA188,913Aexternal-prioritypatent/CA988725A/fr
Priority claimed from FR7414934Aexternal-prioritypatent/FR2269449A2/fr
Priority claimed from FR7438886Aexternal-prioritypatent/FR2292621A2/fr
Priority claimed from NO744584Aexternal-prioritypatent/NO141793C/no
Publication of NO771892LpublicationCriticalpatent/NO771892L/no
Application filed by Petroles Cie FrancaisefiledCriticalPetroles Cie Francaise
Priority to NO771892ApriorityCriticalpatent/NO147062C/no
Publication of NO147062BpublicationCriticalpatent/NO147062B/no
Publication of NO147062CpublicationCriticalpatent/NO147062C/no