Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5203396 | Vacuum valve for die casting | Russell J. VanRens, James M. Rumford | 1993-04-20 |
| 5199480 | Sealed shot sleeve for vacuum die casting | LaVerne D. Smith, Russell J. VanRens | 1993-04-06 |