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 A Palmgren, H Reijonen, I LeikkonenfiledCriticalA Palmgren
Priority to FI22471ApriorityCriticalpatent/FI45708C/fi
Application grantedgrantedCritical
Publication of FI45708BpublicationCriticalpatent/FI45708B/fi
Publication of FI45708CpublicationCriticalpatent/FI45708C/fi