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 AT21391Dexternal-prioritypatent/AT21391B/en
Application filed by Julius Carl HofmannfiledCriticalJulius Carl Hofmann
Application grantedgrantedCritical
Publication of AT26251BpublicationCriticalpatent/AT26251B/en