Projects and reports, suggestions of engineers on various inventions

Title	Projects and reports, suggestions of engineers on various inventions
Series	1921
Fonds	Council of People's Commissars of the RSFSR (Council of People's Commissars of the RSFSR)
Display format	Full description RUSMARC
Collections	Russian inventions: Pages of history → Inventions in 1917–1991 → Selected inventions