Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4484058 | Electron beam hole drilling apparatus | Lester W. Jordan, Chester E. Yaworsky, Frank L. Zampino | 1984-11-20 |
| 4470945 | Method and apparatus for applying an electron beam drilling backer to a metal sheet | Lester W. Jordan, Chester E. Yaworsky, Frank L. Zampino | 1984-09-11 |
| 4239954 | Backer for electron beam hole drilling | Lester W. Jordan, Chester E. Yaworsky | 1980-12-16 |