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Priority claimed from US06/872,079external-prioritypatent/US4775411A/en
Application filed by Christopher Glade KnudsenfiledCriticalChristopher Glade Knudsen
Publication of HRP940872A2publicationCriticalpatent/HRP940872A2/en
Publication of HRP940872B1publicationCriticalpatent/HRP940872B1/en