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Publication date
Priority claimed from US06/487,749external-prioritypatent/US4468309A/en
Application filed by White Eng CorpfiledCriticalWhite Eng Corp
Priority to NO844129ApriorityCriticalpatent/NO167988C/en
Publication of NO844129LpublicationCriticalpatent/NO844129L/en
Publication of NO167988BpublicationCriticalpatent/NO167988B/en
Publication of NO167988CpublicationCriticalpatent/NO167988C/en