Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4440640 | Hoist to be used in combination with molten metal filtering apparatus | Daniel E. Groteke | 1984-04-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4440640 | Hoist to be used in combination with molten metal filtering apparatus | Daniel E. Groteke | 1984-04-03 |