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
Application filed by I G Farbenisdustrielle AktiengfiledCriticalI G Farbenisdustrielle Aktieng
Publication of FI20405ApublicationCriticalpatent/FI20405A/fi