Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679383 | Dual flexible lip extrusion apparatus | John W. Ryan, Gregory M. Wilson, Donald R. Garton, Harry G. Lippert | 1997-10-21 |
| 5618568 | Dual-chamber vacuum box | Jeffrey M. Seckora, Brian M. Pitsch | 1997-04-08 |