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
CA902623A
Inventor
Grewe Ferdinand
Frohberger Paul-Ernst
H. Buchel Karl
Kaspers Helmut
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.)
Bayer AG
Original Assignee
Bayer AG
Publication date
Application grantedgrantedCritical
Publication of CA902623ApublicationCriticalpatent/CA902623A/en