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Application filed by И.М. Оздровская, И.М. Оздровска, Е.Н. ОздровскийfiledCriticalИ.М. Оздровская
Priority to SU586485ApriorityCriticalpatent/SU113572A1/ru
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Комитет по делам изобретений и открытий при Совете Министров СССР Типографи Комитета по делам изобретений и открытий при Москва, Петровка, 14 Совете Министров СССР