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 Irja LehtofiledCriticalIrja Lehto
Priority to FI740588ApriorityCriticalpatent/FI49902C/fi
Priority to SE7502200Aprioritypatent/SE414363B/sv
Application grantedgrantedCritical
Publication of FI49902BpublicationCriticalpatent/FI49902B/fi
Publication of FI49902CpublicationCriticalpatent/FI49902C/fi