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Application filed by Sven Ivar OthmanfiledCriticalSven Ivar Othman
Priority to FI854982ApriorityCriticalpatent/FI78387C/fi
Publication of FI854982A0publicationCriticalpatent/FI854982A0/fi
Publication of FI854982ApublicationCriticalpatent/FI854982A/fi
Publication of FI78387BpublicationCriticalpatent/FI78387B/fi
Application grantedgrantedCritical
Publication of FI78387CpublicationCriticalpatent/FI78387C/fi