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
CA733966A
Inventor
Regnier Gilbert
Ledouarec Jean-Claude
Canevari Roger
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.)
Science Union et Cie
Original Assignee
Science Union et Cie
Publication date
Application grantedgrantedCritical
Publication of CA733966ApublicationCriticalpatent/CA733966A/en