Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846433 | Adjustable hanger | Roy L. Edgar | 1989-07-11 |
| 4807843 | Recess plug for precast concrete panels | Robert E. Truitt | 1989-02-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846433 | Adjustable hanger | Roy L. Edgar | 1989-07-11 |
| 4807843 | Recess plug for precast concrete panels | Robert E. Truitt | 1989-02-28 |