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Priority claimed from US06/880,249external-prioritypatent/US4716906A/en
Priority claimed from US07/021,830external-prioritypatent/US4745924A/en
Application filed by Spacelabs IncfiledCriticalSpacelabs Inc
Application grantedgrantedCritical
Publication of ATE71499T1publicationCriticalpatent/ATE71499T1/en