| Subject | English | Spanish |
| patents. | apparatus and instruments for communications engineering, namely for communications, high frequency and control engineering | aparatos e instrumentos para ingeniería de corrientes débiles, en concreto para comunicaciones, alta frecuencia y |
| patents. | apparatus and instruments for electrical engineering, namely for conducting, transforming, storing, regulation and control | aparatos e instrumentos para electrotecnia, en concreto para conducción, transformación, almacenamiento, reglaje |
| IT, tech. | automatic control engineering | automática |
| automat. | control engineering | ingeniería de regulación |
| CNC, meas.inst. | control engineering | automática |
| IT | power control engineering | ingeniería de control de potencia |