Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818112 | Process for mixing foundry molding materials | Norbert Damm | 1989-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818112 | Process for mixing foundry molding materials | Norbert Damm | 1989-04-04 |