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supports d'enregistrement magnétiques
| et
| optiques
| supports d'enregistrement magnétiques | |
| patents. | magnetic data carriers; magnetic recording media |
| ET | |
| comp. | AND |
| optique | |
| chem. | optical |
| commun. transp. | optic |
| construct. | diffuser |
| econ. | optics |
| health. | optical optic; visual |
| |||
| magnetic data carriers; magnetic recording media | |||
| supports d'enregistrement magnétiques: 16 phrases in 3 subjects |
| Electronics | 2 |
| Patents | 11 |
| Technology | 3 |