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
CA812601A
Inventor
I. Johansson Gustaf
B. Larsson Lars
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.)
Ostbergs Fabriks AB
Original Assignee
Ostbergs Fabriks AB
Publication date
Application grantedgrantedCritical
Publication of CA812601ApublicationCriticalpatent/CA812601A/en