Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5381682 | Apparatus and method of manufacturing masonry fasteners | Herman K. Marquardt | 1995-01-17 |
| 5299897 | Masonry fastener | — | 1994-04-05 |
| 5203194 | Method of forming a trailer hitch receiver tube | — | 1993-04-20 |