Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H636 | Torque limited drive for manual valves | Daniel Underwood | 1989-06-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H636 | Torque limited drive for manual valves | Daniel Underwood | 1989-06-06 |