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Application filed by Я.К. Денисюк, Н.А. СыхраfiledCriticalЯ.К. Денисюк
Priority to SU140293ApriorityCriticalpatent/SU38131A1/ru
Application grantedgrantedCritical
Publication of SU38131A1publicationCriticalpatent/SU38131A1/ru