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
CA824107A
Inventor
Wegrzyn Jan
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.)
Instytut Spawalnictwa
Original Assignee
Instytut Spawalnictwa
Publication date
Application grantedgrantedCritical
Publication of CA824107ApublicationCriticalpatent/CA824107A/en