Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872683 | Golf club putter | Brian A. Doran | 1989-10-10 |
| 4809977 | Golf club set with alignment features | Brian A. Doran | 1989-03-07 |
| 4809981 | Golf putter with alignment features | Brian A. Doran | 1989-03-07 |
| 4804183 | Double faced sports racquet | Brian A. Doran | 1989-02-14 |