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 HeikkilaefiledCriticalHeikkilae
Priority to FI67773ApriorityCriticalpatent/FI48151C/fi
Application grantedgrantedCritical
Publication of FI48151BpublicationCriticalpatent/FI48151B/fi
Publication of FI48151CpublicationCriticalpatent/FI48151C/fi