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Priority claimed from US06/240,470external-prioritypatent/US4407431A/en
Application filed by Charles George Hutter IiifiledCriticalCharles George Hutter Iii
Publication of FI823779A0publicationCriticalpatent/FI823779A0/en
Publication of FI823779LpublicationCriticalpatent/FI823779L/en