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 DER63955Dexternal-prioritypatent/DE459443C/en
Priority claimed from DER63185Dexternal-prioritypatent/DE455203C/en
Priority claimed from DER63376Dexternal-prioritypatent/DE455906C/en
Priority claimed from DER65107Dexternal-prioritypatent/DE456021C/en
Application filed by Rudolf RoderwaldfiledCriticalRudolf Roderwald
Application grantedgrantedCritical
Publication of AT108006BpublicationCriticalpatent/AT108006B/en