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 Erfurter Maelzerei Und SpeichefiledCriticalErfurter Maelzerei Und Speiche
Priority to AT594358ApriorityCriticalpatent/AT209220B/en
Application grantedgrantedCritical
Publication of AT209220BpublicationCriticalpatent/AT209220B/en