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 FischerfiledCriticalFischer
Publication of FI47457BpublicationCriticalpatent/FI47457B/fi
Application grantedgrantedCritical
Publication of FI47457CpublicationCriticalpatent/FI47457C/fi