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Priority claimed from US07/179,047external-prioritypatent/US4911800A/en
Application filed by Massachusetts Inst TechnologyfiledCriticalMassachusetts Inst Technology
Publication of NO894457D0publicationCriticalpatent/NO894457D0/no
Publication of NO894457LpublicationCriticalpatent/NO894457L/no
Priority to US07/477,635priorityCriticalpatent/US5031486A/en