| Number | Name | Date | Kind |
|---|---|---|---|
| 1535486 | Lundy | Apr 1925 | |
| 1981329 | Rivier | Nov 1934 | |
| 4074165 | Moriyama | Feb 1978 |
| Number | Date | Country |
|---|---|---|
| 218532 | Oct 1962 | JPX |
| Entry |
|---|
| Light & Lighting, 9-1960, p. 256, Tungsten Lamp (#4). |
| Light & Lighting, 3-1962, p. 90-Airam-Wirkkala Lamp (#2). |