Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4606730 | Bimetal electrodes for spark plugs or the like and method of making same | William W. Sprau | 1986-08-19 |
| 4575343 | Bimetal electrode and method of making same | George T. Payne | 1986-03-11 |
| 4214333 | Apparatus for trimming boltheads or the like | — | 1980-07-29 |