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 Ratzel GerhardfiledCriticalRatzel Gerhard
Priority to FI132071ApriorityCriticalpatent/FI49868C/en
Application grantedgrantedCritical
Publication of FI49868BpublicationCriticalpatent/FI49868B/fi
Publication of FI49868CpublicationCriticalpatent/FI49868C/en