Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7429331 | Apparatus and process for inducing magnetism | Barry Lumsden | 2008-09-30 |
| 4861033 | Practice putting cup | — | 1989-08-29 |
| 4765625 | Practice device for putting strokes | — | 1988-08-23 |
| 4544160 | Practice device for putting strokes | — | 1985-10-01 |