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
CA646699A
Inventor
Brandt Bertil
Lengquist Carl-Erik
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.)
Trafikaktiebolaget Grangesberg-Oxelosund
Original Assignee
Trafikaktiebolaget Grangesberg-Oxelosund
Publication date
Application grantedgrantedCritical
Publication of CA646699ApublicationCriticalpatent/CA646699A/en