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
CA889149A
Inventor
S. E. Eriksson Birger
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.)
JONKOPING-VULCAN AB
Original Assignee
JONKOPING-VULCAN AB
Publication date
Application grantedgrantedCritical
Publication of CA889149ApublicationCriticalpatent/CA889149A/en