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Application filed by Предприятие П/Я Р-6760, Предприятие П/Я Р-6762, Предприятие П/Я В-8772filedCriticalПредприятие П/Я Р-6760
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(54) СПОСОБ ОТОПЛЕНИЯ ДВУХВАННОЙ СТАЛЕПЛАВИЛЬНОЙ(54) METHOD OF HEATING DOUBLE-STEEL STEEL
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1.Авторское свидетельство СССР 223108, кл. F 27 D 7/06, 1966.1. Authors certificate of the USSR 223108, cl. F 27 D 7/06, 1966.2.Авторское свидетельство СССР 667781, кл. F 27 В 3/00, 1979.2. Authors certificate of the USSR 667781, cl. F 27 V 3/00, 1979.