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 Pentti TiihonenfiledCriticalPentti Tiihonen
Priority to FI790153ApriorityCriticalpatent/FI63915C/en
Priority to FI790948Aprioritypatent/FI64787C/en
Priority to SE8000394Aprioritypatent/SE429747B/en
Publication of FI790153ApublicationCriticalpatent/FI790153A/en
Application grantedgrantedCritical
Publication of FI63915BpublicationCriticalpatent/FI63915B/en
Publication of FI63915CpublicationCriticalpatent/FI63915C/en