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 DK315170AAexternal-prioritypatent/DK130332B/en
Application filed by Air Prod & ChemfiledCriticalAir Prod & Chem
Publication of DK131595BpublicationCriticalpatent/DK131595B/en
Application grantedgrantedCritical
Publication of DK131595CpublicationCriticalpatent/DK131595C/en