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Application filed by Goeran Adolf OehmanfiledCriticalGoeran Adolf Oehman
Priority to FI760249ApriorityCriticalpatent/FI55580C/fi
Publication of FI760249A7publicationCriticalpatent/FI760249A7/fi
Application grantedgrantedCritical
Publication of FI55580BpublicationCriticalpatent/FI55580B/fi
Publication of FI55580CpublicationCriticalpatent/FI55580C/fi