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Application filed by В. И. Панов, А. В. Семке , А. Н. НовиковfiledCriticalВ. И. Панов, А. В. Семке , А. Н. Новиков
Priority to SU1348424ApriorityCriticalpatent/SU355895A1/ru
Application grantedgrantedCritical
Publication of SU355895A1publicationCriticalpatent/SU355895A1/ru