Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6487778 | Utility knife with pressure reducing slot | Donald Gringer | 2002-12-03 |
| D453251 | Wood scraper | Donald Gringer | 2002-01-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6487778 | Utility knife with pressure reducing slot | Donald Gringer | 2002-12-03 |
| D453251 | Wood scraper | Donald Gringer | 2002-01-29 |