Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Gerald J. Garwood | The Post Office | 1 |
| 1 | Clive R. Day | British Telecommunications Plc | 1 |
| 1 | Ronald Else | The Post Office | 1 |
| 1 | David H. Newman | The Post Office | 1 |
| 1 | Alan G. Steventon | The Post Office | 1 |