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.)
Expired
Application number
CA864443A
Inventor
Duthion Louis
Marzuvanlian Arsene
A. Chaube Robert
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.)
DE WENDEL SA
Compagnie Francaise de Raffinage SA
Original Assignee
DE WENDEL SA
Compagnie Francaise de Raffinage SA
Publication date
Application grantedgrantedCritical
Publication of CA864443ApublicationCriticalpatent/CA864443A/en