Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5172659 | Differential pressure control system for variable camshaft timing system | Roger P. Butterfield | 1992-12-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5172659 | Differential pressure control system for variable camshaft timing system | Roger P. Butterfield | 1992-12-22 |