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 Centralsug AbfiledCriticalCentralsug Ab
Priority to FI87165ApriorityCriticalpatent/FI44044C/fi
Application grantedgrantedCritical
Publication of FI44044BpublicationCriticalpatent/FI44044B/fi
Publication of FI44044CpublicationCriticalpatent/FI44044C/fi