| 2390800 | Transformer | |||
| 2318068 | Electrical winding | |||
| 2316370 | Transformer | |||
| 2305487 | Lighting device | |||
| 2095294 | Transformer and the like | |||
| 2053133 | Rectification of alternating currents | |||
| 1967108 | Voltage regulating apparatus | |||
| 1831142 | Electric transformer | |||
| 1681519 | Regulating system | |||
| 1668110 | Electrical transformer construction | |||
| 1569756 | Ignition coil | |||
| 0815765 | N/A | |||
| 0322724 | N/A |