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useful system (ssn) | |||
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useful systems (ssn) |
полезная система: 70 phrases in 11 subjects |
Agrochemistry | 1 |
Astronautics | 10 |
Economy | 1 |
Hydraulic engineering | 1 |
Makarov | 8 |
Maritime law & Law of the Sea | 1 |
Mass media | 2 |
Military | 17 |
Programming | 6 |
Space | 1 |
Technology | 22 |