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Application filed by Ленинградский Завод "Госметр"filedCriticalЛенинградский Завод "Госметр"
Priority to SU2151629ApriorityCriticalpatent/SU540163A1/ru
Application grantedgrantedCritical
Publication of SU540163A1publicationCriticalpatent/SU540163A1/ru