 |
| |||
| radial engine (Leonid Dzhepko) | |||
| ring motor (Aleksandr V); wrap around motor (Aleksandr V) | |||
| кольцевой двигатель: 13 phrases in 4 subjects |
| Aerohydrodynamics | 1 |
| Astronautics | 10 |
| Military | 1 |
| Technology | 1 |
|
| |||
| radial engine (Leonid Dzhepko) | |||
| ring motor (Aleksandr V); wrap around motor (Aleksandr V) | |||
| кольцевой двигатель: 13 phrases in 4 subjects |
| Aerohydrodynamics | 1 |
| Astronautics | 10 |
| Military | 1 |
| Technology | 1 |