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Application filed by Предприятие П/Я А-1701, Предприятие П/Я Р-6808filedCriticalПредприятие П/Я А-1701
Priority to SU1831285ApriorityCriticalpatent/SU506925A1/ru
Application grantedgrantedCritical
Publication of SU506925A1publicationCriticalpatent/SU506925A1/ru