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
CA646625A
Inventor
Purdon Arthur
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.)
Financiere De Transports Et D'entreprises Industrielles (sofina) Soc An Ste
Original Assignee
Financiere De Transports Et D'entreprises Industrielles (sofina) Soc An Ste
Publication date
Application grantedgrantedCritical
Publication of CA646625ApublicationCriticalpatent/CA646625A/en