Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5791103 | Pouring buck | David W. Coolman | 1998-08-11 |
| 5560658 | Construction of and latching arrangement for large-size overhead bi-fold doors | David W. Coolman | 1996-10-01 |
| D372652 | Crimping tool | David W. Coolman | 1996-08-13 |
| 5520475 | Fastening tab | David W. Coolman | 1996-05-28 |