| 2052433 | Electric fixture | |||
| 2062928 | Lock switch and armored wire unit | |||
| 2170338 | Landing indicator for airports | |||
| 2249685 | Highway barricade support | |||
| 2313380 | Safety switch | |||
| 2467472 | Gaseous tube flasher circuit | |||
| 2480122 | Electron discharge apparatus | |||
| 2492837 | Portable signal light | |||
| 2507880 | Road barricade or trestle | |||
| 2512280 | Electric discharge device construction |