| Year | 1998 |
| Date | 18-Dec |
| Volume | 181 |
| Issue | 4,083 |
| Page | 754 |
| Category | Internal Combustion |
| Part | |
| Title | Miniature Spark Plugs |
| Author | Sam Rhodes |
| Notes | Devised this method of making. Insulating material, body, centre electrode, firing the glass, finishing and fitting |