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| crossed helical gear train (Александр Рыжов); crossed-axis helical gearing (Александр Рыжов); mossed helical gear pair (Александр Рыжов) | |||
| зубчатая винтовая передача: 14 phrases in 7 subjects |
| Automated equipment | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Makarov | 2 |
| Nautical | 1 |
| Technology | 6 |
| Transport | 2 |