| 4.2.2.8. | on an installation unit incorporating a lens of plastic material, the group of letters "PL" to be affixed near the symbols prescribed in paragraphs 4.2.2.1. to 4.2.2.7. above; | a0c0 |
| 4.2.2.8. | on an installation unit incorporating a lens of plastic material, the group of letters "PL" to be affixed near the symbols prescribed in paragraphs 4.2.2.1. to 4.2.2.7. above; | a0c0 |