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
CA752796A
Inventor
Dobrovsky Ferdinand
Rosner Kurt
Grohs Felix
Kuhnelt Wolfgang
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.)
Alpine Montan AG
Original Assignee
Alpine Montan AG
Publication date
Application grantedgrantedCritical
Publication of CA752796ApublicationCriticalpatent/CA752796A/en