Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4699375 | System for skip rope exercising | Paul Appelbaum | 1987-10-13 |
| 4284167 | Sound reproducing device | Donald D. Grieg | 1981-08-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4699375 | System for skip rope exercising | Paul Appelbaum | 1987-10-13 |
| 4284167 | Sound reproducing device | Donald D. Grieg | 1981-08-18 |