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 Chem Fab Helfenberg A G Vorm EfiledCriticalChem Fab Helfenberg A G Vorm E
Application grantedgrantedCritical
Publication of AT6505BpublicationCriticalpatent/AT6505B/de