Name:
NR BR 1829 PDF
Published Date:
06/01/1982
Status:
[ Active ]
Publisher:
Network Rail
The glass is required for use with internally illuminated panel indicators which are required to be normally obscure in the dark condition and to provide a reasonably sharp white image indication of good luminance when illuminated through a legend mask on the internal diffuse face from an incandescent lamp.
| File Size : | 1 file , 110 KB |
| Number of Pages : | 5 |
| Published : | 06/01/1982 |
