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 Valtion TeknillinenfiledCriticalValtion Teknillinen
Priority to FI844282ApriorityCriticalpatent/FI76427C/fi
Publication of FI844282A0publicationCriticalpatent/FI844282A0/fi
Publication of FI844282LpublicationCriticalpatent/FI844282L/fi
Publication of FI76427BpublicationCriticalpatent/FI76427B/fi
Application grantedgrantedCritical
Publication of FI76427CpublicationCriticalpatent/FI76427C/fi