Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4550768 | Compactability measurement method and apparatus for sand casting | Marshall S. Campbell | 1985-11-05 |
| 4304289 | Apparatus for controlling the moisture content of foundry sand | — | 1981-12-08 |