Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5135445 | Neck exercising apparatus | Kim D. Christensen, Kent S. Greenawalt, C. F. Sunny Sporer | 1992-08-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5135445 | Neck exercising apparatus | Kim D. Christensen, Kent S. Greenawalt, C. F. Sunny Sporer | 1992-08-04 |