Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CH2044/81Aexternal-prioritypatent/CH649077A5/en
Application filed by Lonza AgfiledCriticalLonza Ag
Priority claimed from EP82102187Aexternal-prioritypatent/EP0061657B1/en
Application grantedgrantedCritical
Publication of ATE8041T1publicationCriticalpatent/ATE8041T1/en