Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6609429 | Method and apparatus for locating and aligning golf club shaft spine | Joseph H. Butler, Michael J. Twigg | 2003-08-26 |
| 6572488 | Method and apparatus for locating and aligning golf club shaft spine | Joseph H. Butler, Michael J. Twigg | 2003-06-03 |
| 6550121 | Method and apparatus for locating and aligning golf club shaft spine | Joseph H. Butler, Michael J. Twigg | 2003-04-22 |
| 6543125 | Apparatus for locating and aligning golf club shaft spine | Joseph H. Butler, Michael J. Twigg | 2003-04-08 |