The Path of the Inventor

Inventions of workers, technicians, machinist, professor, engineer, peasant for industry, agriculture. Testing of inventions: S. P. Sorokin's spinning wheel, tram switches I. M. Litvinchev, A. A. Voronkov's high-speed spindle, apparatus for producing "formolite" powder (from oil) prof. A. M. Nastyukov, automatic brake for boxcars of F. P. Kazantsev, method of turbine drilling of oil wells by M. A. Kapemoshnikov, apparatus of A. F. Isavnin; Inventors Conference.

B&W

1

1928