Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D347080 | Outdoor roadway lighting fixture | Douglas S. Hammond | 1994-05-17 |
| D326276 | Hand stamp | Richard Lindahl | 1992-05-19 |
| 5105738 | Articulated hand stamp | — | 1992-04-21 |
| D322984 | Hand stamp | Richard Lindahl | 1992-01-07 |