Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5667252 | Internal sleeve with a plurality of lands and teeth | Bruce William Schafer, Mark Aaron Sloman, Stanley Mark Gryder | 1997-09-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5667252 | Internal sleeve with a plurality of lands and teeth | Bruce William Schafer, Mark Aaron Sloman, Stanley Mark Gryder | 1997-09-16 |