Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866900 | Drywall furring system | — | 1989-09-19 |
| 4858408 | Hold down clip | — | 1989-08-22 |
| 4852325 | Reinforced bead | Martin D. Jahn, Ronald W. Vukmanic | 1989-08-01 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866900 | Drywall furring system | — | 1989-09-19 |
| 4858408 | Hold down clip | — | 1989-08-22 |
| 4852325 | Reinforced bead | Martin D. Jahn, Ronald W. Vukmanic | 1989-08-01 |