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
CA847717A
Inventor
S. E. Fredriksson Per
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.)
Svenska Metallverken AB
Original Assignee
Svenska Metallverken AB
Publication date
Application grantedgrantedCritical
Publication of CA847717ApublicationCriticalpatent/CA847717A/en