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 FI864573ApriorityCriticalpatent/FI76831C/en
Publication of FI864573A0publicationCriticalpatent/FI864573A0/en
Publication of FI864573ApublicationCriticalpatent/FI864573A/en
Application grantedgrantedCritical
Publication of FI76831BpublicationCriticalpatent/FI76831B/en
Publication of FI76831CpublicationCriticalpatent/FI76831C/en