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 Veikko Olavi KarhunenfiledCriticalVeikko Olavi Karhunen
Priority to FI1848/74ApriorityCriticalpatent/FI59483C/fi
Publication of FI184874A7publicationCriticalpatent/FI184874A7/fi
Application grantedgrantedCritical
Publication of FI59483BpublicationCriticalpatent/FI59483B/fi
Publication of FI59483CpublicationCriticalpatent/FI59483C/fi