Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4202128 | Adjustable float sinker | Robin E. T. Hill, Ean L. McDonald, John L. Perdrix | 1980-05-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4202128 | Adjustable float sinker | Robin E. T. Hill, Ean L. McDonald, John L. Perdrix | 1980-05-13 |