Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10617928 | Bowling visual swing training apparatus with line laser | Marvin John Rozner | 2020-04-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10617928 | Bowling visual swing training apparatus with line laser | Marvin John Rozner | 2020-04-14 |