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 Stroemberg Oy AbfiledCriticalStroemberg Oy Ab
Priority to FI791160ApriorityCriticalpatent/FI58992C/fi
Publication of FI791160ApublicationCriticalpatent/FI791160A/fi
Application grantedgrantedCritical
Publication of FI58992BpublicationCriticalpatent/FI58992B/fi
Publication of FI58992CpublicationCriticalpatent/FI58992C/fi