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Application filed by И.П. ВасильевfiledCriticalИ.П. Васильев
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Publication of SU12774A1publicationCriticalpatent/SU12774A1/en
Тип. Гидрогр. Упр. Управл. В.-М. Сил РККА. Ленинград, здание Гл. Адмиралтейства,Type of. Hydro Exercise Manage V.-M. Forces of the Red Army. Leningrad, building Gl. Admiralty,
SU27839A1928-05-181928-05-18
Method to protect pipelines from clogging
SU12774A1
(en)