Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise de Raffinage SA
Original Assignee
Compagnie Francaise de Raffinage SA
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 to FR899764ApriorityCriticalpatent/FR1337267A/fr
Application filed by Compagnie Francaise de Raffinage SAfiledCriticalCompagnie Francaise de Raffinage SA
Priority to FR901587Aprioritypatent/FR81896E/fr
Application grantedgrantedCritical
Publication of FR81896EpublicationCriticalpatent/FR81896E/fr