RU195372U1 RU2019130902U RU2019130902U RU195372U1 RU 195372 U1 RU195372 U1 RU 195372U1 RU 2019130902 U RU2019130902 U RU 2019130902U RU 2019130902 U RU2019130902 U RU 2019130902U RU 195372 U1 RU195372 U1 RU 195372U1 Authority RU Russia Prior art keywords gear shafts teeth augers crusher Prior art date …