Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4627264 | Cam actuated ejector for a shell press | Charles J. Gregorovich, Donald N. Seyfried | 1986-12-09 |
| 4554814 | Air transfer system and method for a shell press | Charles J. Gregorovich, Donald N. Seyfried | 1985-11-26 |
| 4534725 | Apparatus for manufacturing ovenable paperboard articles | Donald J. Hemmelgarn | 1985-08-13 |
| 4513600 | Cam actuated ejector for a shell press | Charles J. Gregorovich, Donald N. Seyfried | 1985-04-30 |
| 4442691 | Double action press having floating punch | Charles J. Gregorovich, Donald N. Seyfried | 1984-04-17 |