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Filing date
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Application filed by Pentti TiihonenfiledCriticalPentti Tiihonen
Priority to FI790153ApriorityCriticalpatent/FI63915C/fi
Priority to FI790948Aprioritypatent/FI64787C/fi
Priority to SE8000394Aprioritypatent/SE429747B/sv
Publication of FI790153ApublicationCriticalpatent/FI790153A/fi
Publication of FI63915BpublicationCriticalpatent/FI63915B/fi
Application grantedgrantedCritical
Publication of FI63915CpublicationCriticalpatent/FI63915C/fi