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Application filed by В.У. ШишковfiledCriticalВ.У. Шишков
Priority to SU20572ApriorityCriticalpatent/SU13196A1/en
Application grantedgrantedCritical
Publication of SU13196A1publicationCriticalpatent/SU13196A1/en
Тип. Гидрогр. Упр. Управ . B.-Jf. Сил РККА. Ленинград, здание Гл. Адмирал,тейства.Type of. Hydro Exercise Manage B.-Jf. Forces of the Red Army. Leningrad, building Gl. Admiral, of.
SU20572A1927-11-021927-11-02
Device for cleaning floors
SU13196A1
(en)