Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822225 | Screw for easily engaging the internal thread of a tapped hole | — | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822225 | Screw for easily engaging the internal thread of a tapped hole | — | 1989-04-18 |