Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721149 | Lost foam casting system with high yield sprue | William G. Hesterberg, Gordon L. Stiller | 1988-01-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721149 | Lost foam casting system with high yield sprue | William G. Hesterberg, Gordon L. Stiller | 1988-01-26 |