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Priority claimed from US06/487,816external-prioritypatent/US4487035A/en
Application filed by Richard C GreenerfiledCriticalRichard C Greener
Publication of NO845239LpublicationCriticalpatent/NO845239L/no
Publication of NO161760BpublicationCriticalpatent/NO161760B/no
Publication of NO161760CpublicationCriticalpatent/NO161760C/no