| 7864342 |
Apparatus and method for measuring displacement of a curved surface using dual laser beams |
Joseph H. Butler |
2011-01-04 |
| 7808655 |
Automated system for determining physical characteristics of a shaft |
Joseph H. Butler, Brian E. Townsend, David Nichols |
2010-10-05 |
| 7024953 |
Apparatus and method for tuning a golf shaft |
— |
2006-04-11 |
| 6997056 |
Method and apparatus for measuring and orienting golf club shaft |
Joseph H. Butler, Michael J. Twigg, F. Sherrill Vowell, Larry R. Palmer |
2006-02-14 |
| 6993970 |
Method and apparatus for measuring and orienting golf club shaft |
Joseph H. Butler, Michael J. Twigg, F. Sherrill Vowell, Larry R. Palmer |
2006-02-07 |
| 6990865 |
Method and apparatus for measuring and orienting golf club shaft |
Joseph H. Butler, Michael J. Twigg, F. Sherrill Vowell, Larry R. Palmer |
2006-01-31 |
| 6915695 |
Method and apparatus for measuring and orienting golf club shaft |
Joseph H. Butler, Michael J. Twigg, F. Sherrill Vowell, Larry R. Palmer |
2005-07-12 |
| 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 |
| 6494109 |
Apparatus and method for tuning a golf shaft |
— |
2002-12-17 |
| 6477899 |
Apparatus for locating and aligning golf club shaft spine |
Joseph H. Butler, Michael J. Twigg |
2002-11-12 |
| 6336263 |
Club and shaft separating device |
Lew Gibson |
2002-01-08 |
| 6183375 |
Apparatus and method for tuning a golf shaft |
— |
2001-02-06 |
| 4388021 |
Method of and device for making canalization by advancing under pressure a string of sewer pipes |
— |
1983-06-14 |