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
CA672499A
Inventor
Dubien Marcel
A.M. Aussedat Robert
Behar Robert
D. Cahn Andre
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.)
FRANCAISE DUCO Ste
Original Assignee
FRANCAISE DUCO Ste
Publication date
Application grantedgrantedCritical
Publication of CA672499ApublicationCriticalpatent/CA672499A/en