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 Engelbert Schotzko, Ingrid ToberfiledCriticalEngelbert Schotzko
Priority to AT892358ApriorityCriticalpatent/AT209535B/de
Application grantedgrantedCritical
Publication of AT209535BpublicationCriticalpatent/AT209535B/de