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Priority claimed from US07/146,723external-prioritypatent/US4902539A/en
Priority claimed from SU884355427Aexternal-prioritypatent/RU1830085C/ru
Application filed by Praxair Technology IncfiledCriticalPraxair Technology Inc
Publication of LV5102A3publicationCriticalpatent/LV5102A3/lv