Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4684133 | Swing force indicator for a playing piece of sports equipment | — | 1987-08-04 |
| 4363488 | Swing force indicator for playing piece of sports equipment | Arthur M. Maroth | 1982-12-14 |
| 4270753 | Golf club swing indicator | Arthur M. Maroth | 1981-06-02 |