Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5441399 | Method of removing stuck sprue and tool for removal therein | Norman B. Campbell, Stefan Diosan | 1995-08-15 |
| 5391332 | Method of removing stuck sprue | Norman B. Campbell, Stefan Diosan | 1995-02-21 |
| 5257831 | Rag tearing machines for the textile industry | — | 1993-11-02 |