 |
| |||
| photosensitive recording (для озвучивания кинофильмов); sound-on-film; sound-to-film recording; sound-on-film recording (для озвучивания кинофильмов) | |||
| photographic sound recording | |||
| photographic recording; optical sound recording | |||
| фотографическая звукозапись: 7 phrases in 2 subjects |
| Electronics | 5 |
| Telecommunications | 2 |