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
CA669802A
Inventor
A. Schuler Wilhelm
Klingler Karl-Heinz
Beschke Helmut
Von Schlichtegroll Ansgar
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
Publication date
Application grantedgrantedCritical
Publication of CA669802ApublicationCriticalpatent/CA669802A/en