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Application filed by Juhani Tapio VenetjokifiledCriticalJuhani Tapio Venetjoki
Priority to FI770243ApriorityCriticalpatent/FI53089C/fi
Application grantedgrantedCritical
Publication of FI53089BpublicationCriticalpatent/FI53089B/fi
Priority to SE7800564Aprioritypatent/SE417927B/sv
Publication of FI53089CpublicationCriticalpatent/FI53089C/fi