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
CA603628A
Inventor
Pinet Robert
Delrieux Jean
Bortaud Pierre
Bergeron Pierre
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.)
Societe Europeenne des Produits Refractaires SAS
Original Assignee
Electro Refractaire SA
Publication date
Application grantedgrantedCritical
Publication of CA603628ApublicationCriticalpatent/CA603628A/en