Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885993 | Shaped charge with bifurcated projection for detonating cord | Scott L. Hayes | 1989-12-12 |
| 4852495 | Shaped charge detonating cord retainer arrangement | Scott L. Hayes | 1989-08-01 |