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Priority claimed from CH4071/87Aexternal-prioritypatent/CH674088A5/fr
Priority claimed from CH4072/87Aexternal-prioritypatent/CH674089A5/fr
Application filed by Lem Liaisons Electron MecfiledCriticalLem Liaisons Electron Mec
Application grantedgrantedCritical
Publication of RU1769806CpublicationCriticalpatent/RU1769806C/ru