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
CA817325A
Inventor
Schmidt Alfred
Gauster Wolfgang
Weinrotter Ferdinand
Raab Gunther
Muller Walter
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.)
Osterreichische Stickstoffwerke AG
Original Assignee
Osterreichische Stickstoffwerke AG
Publication date
Application grantedgrantedCritical
Publication of CA817325ApublicationCriticalpatent/CA817325A/en