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Application filed by А.П. ПетровичfiledCriticalА.П. Петрович
Priority to SU41453ApriorityCriticalpatent/SU15868A1/en
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Publication of SU15868A1publicationCriticalpatent/SU15868A1/en
Тип, Гндрогр. Упр. Управх. В.-М. Сил РККА. Денинград, здание Гл. АдмжралтвйотеаType Gdrogr. Exercise Authorized V.-M. Forces of the Red Army. Deningrad, building Gl. Admzhraltviyotea