Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33735 | Golf club shaft | William G. Sprague | 1991-11-05 |
| 4431187 | Golf club shaft | William G. Sprague | 1984-02-14 |
| 4330126 | High flex golf shaft having reverse tapered butt section | — | 1982-05-18 |