Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4979553 | Slat assembly and curtain for rolling door | Rajendra Singh | 1990-12-25 |
| 4670142 | Aerated grit tank | — | 1987-06-02 |
| 4660493 | Dual directional cam cleat | — | 1987-04-28 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4979553 | Slat assembly and curtain for rolling door | Rajendra Singh | 1990-12-25 |
| 4670142 | Aerated grit tank | — | 1987-06-02 |
| 4660493 | Dual directional cam cleat | — | 1987-04-28 |