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 US254458Aexternal-prioritypatent/US3257776A/en
Application filed by Allied ChemfiledCriticalAllied Chem
Application grantedgrantedCritical
Publication of AT251551BpublicationCriticalpatent/AT251551B/en