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
CA820427A
Inventor
Ernst Otto
Neubold Kurt
Ibing Guenther
Kugler Fritz
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.)
RUHROEL CHEMIEWERK DER STEINKOHLENBERGWERKE MATHIAS STINNES AG SCHAFT
BASF Schweiz AG
Original Assignee
RUHROEL CHEMIEWERK DER STEINKOHLENBERGWERKE MATHIAS STINNES AG SCHAFT
Ciba AG
Publication date
Application grantedgrantedCritical
Publication of CA820427ApublicationCriticalpatent/CA820427A/en