 |
| |||
| single-edged variable width track; single-edged variable sound track; unilateral variable area track; unilateral variable sound track | |||
| односторонняя фонограмма переменной ширины: 3 phrases in 1 subject |
| Mass media | 3 |
|
| |||
| single-edged variable width track; single-edged variable sound track; unilateral variable area track; unilateral variable sound track | |||
| односторонняя фонограмма переменной ширины: 3 phrases in 1 subject |
| Mass media | 3 |