| Year | 1926 |
| Date | 29-Apr |
| Volume | 54 |
| Issue | 1,305 |
| Page | 460 |
| Category | Recent Inventions |
| Part | |
| Title | Safety Device for Electric Generators |
| Author | |
| Notes | Automatic field control safety device for large generators by Siemen - Schuckertwerke Gesellschaft Mit Beschranter Haftung |