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
CA867744A
Inventor
Gobron Georges
Motillon Marcel
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.)
Melle Bezons SA
Original Assignee
Melle Bezons SA
Publication date
Application grantedgrantedCritical
Publication of CA867744ApublicationCriticalpatent/CA867744A/en