| Year | 1921 |
| Date | 28-Jul |
| Volume | 45 |
| Issue | 1,057 |
| Page | 66 |
| Category | Electrical |
| Part | |
| Title | The Entz Magnetic Transmission |
| Author | F.H.Hutton |
| Notes | A System with Great Possibilities for Motor Cars. Transmission, controller, connection of electrical machines, charging, starting, off and brake |