Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875517 | Method of producing salt cores for use in die casting | Raymond J. Donahue, Terrance M. Cleary, Frederick M. Hauenstein | 1989-10-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875517 | Method of producing salt cores for use in die casting | Raymond J. Donahue, Terrance M. Cleary, Frederick M. Hauenstein | 1989-10-24 |