Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372176 | Method and apparatus for producing housing having a cast-in-place insert using lost foam process | Peter W. A. Brown | 1994-12-13 |
| 5314002 | Vacuum valve apparatus for die casting | Donald L. Lessard | 1994-05-24 |
| 5293693 | Vacuum valve design for die casting | Craig A. Nelson | 1994-03-15 |