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Priority claimed from FI681412Aexternal-prioritypatent/FI49736C/sv
Application filed by United Technologies CorpfiledCriticalUnited Technologies Corp
Publication of FI51782BpublicationCriticalpatent/FI51782B/fi
Application grantedgrantedCritical
Publication of FI51782CpublicationCriticalpatent/FI51782C/sv