Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363488 | Swing force indicator for playing piece of sports equipment | Sybil Maroth | 1982-12-14 |
| 4270753 | Golf club swing indicator | Sybil Maroth | 1981-06-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363488 | Swing force indicator for playing piece of sports equipment | Sybil Maroth | 1982-12-14 |
| 4270753 | Golf club swing indicator | Sybil Maroth | 1981-06-02 |