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 AckerfeldtfiledCriticalAckerfeldt
Priority to FI204964ApriorityCriticalpatent/FI47564C/fi
Publication of FI47564BpublicationCriticalpatent/FI47564B/fi
Application grantedgrantedCritical
Publication of FI47564CpublicationCriticalpatent/FI47564C/fi