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
CA816281A
Inventor
A. Fischer Wilhelm
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.)
Der Eisenhuttentechnik Mbh Gesell zur Forderung
Original Assignee
Der Eisenhuttentechnik Mbh Gesell zur Forderung
Publication date
Application grantedgrantedCritical
Publication of CA816281ApublicationCriticalpatent/CA816281A/en