Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5299618 | Method for recovering foundry sand by roasting | — | 1994-04-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5299618 | Method for recovering foundry sand by roasting | — | 1994-04-05 |