Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5631440 | Universal isolation member and non-electric detonator cap including the same | Eric R. Davis, Ernest L. Gladden, Alvaro Zappalorti | 1997-05-20 |
| 5597973 | Signal transmission fuse | Ernest L. Gladden, Alvaro Zappalorti, Eric R. Davis, Frank J. Lucca | 1997-01-28 |