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Application filed by Sven Axel Olof WirfeltfiledCriticalSven Axel Olof Wirfelt
Priority to SE8303034ApriorityCriticalpatent/SE440723B/sv
Publication of SE8303034D0publicationCriticalpatent/SE8303034D0/sv
Publication of SE8303034LpublicationCriticalpatent/SE8303034L/sv
Publication of SE440723BpublicationCriticalpatent/SE440723B/sv