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 Alpo Artturi MaekinenfiledCriticalAlpo Artturi Maekinen
Priority to FI241371ApriorityCriticalpatent/FI49766C/en
Application grantedgrantedCritical
Publication of FI49766BpublicationCriticalpatent/FI49766B/fi
Publication of FI49766CpublicationCriticalpatent/FI49766C/en