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Priority claimed from US06/859,951external-prioritypatent/US4731231A/en
Priority claimed from PCT/US1987/001019external-prioritypatent/WO1987007029A1/en
Application filed by Robert A PerryfiledCriticalRobert A Perry
Publication of DK647387D0publicationCriticalpatent/DK647387D0/da
Publication of DK647387ApublicationCriticalpatent/DK647387A/da