Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D305069 | Door light frame | David A. De Block | 1989-12-12 |
| 4884376 | Sun porch | David A. DeBlock | 1989-12-05 |
| 4872498 | Venting door light with insulated glass | David A. DeBlock | 1989-10-10 |