Inventions

1. Avramov V.E., Khmel'kovskii I.E., Tsaregorodtsev M.E., Chikhachev O.M., Avramov P.V., Egorov N.V. Ore explosion technique. SU Patent No 1292406, Filed on October 22, 1986, Priority November 19, 1984, E21 C 37/00
2. Khmel'kovskii I.E., Avramov V.E., Chikhachev O.M., Chernykh N.V., Avramov P.V., Urbaev A.O. Chikhachev M.M. Explosion of complex-structured ore blocks. SU Patent No 1292411, Filed October 22, 1986, Priority February 11, 1985, E21 C 41/06, 37/00
3. Avramov V.E., Avramov P.V., Chikhachev O.M., Khmel'kovskii I.E., Tsaregorodtsev M.E. Ore dispersion technique. SU Patent No 1318289, Filed February 22, 1987, Priority December 24, 1985, B02 C19/00
4. Avramov V.E., Kazmin M.I., Avramov P.V. Device for the combined bore holes drilling. SU Patent No 1546602, Filed on November 1, 1989, Priority December 8, 1987, E 21 B 7/14, E 21 c 37/16