Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692409 | Production of metal containers | Christopher F. Cheers, Paul Porucznik | 1997-12-02 |
| 5617755 | Presses for drawing a hollow article | Christopher F. Cheers, Paul Porucznik, Ian Flude | 1997-04-08 |