Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878675 | Educational and amusement game | Leroy R. Perry, Jr. | 1989-11-07 |
| 4838907 | High efficiency industrial vacuum cleaner | — | 1989-06-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878675 | Educational and amusement game | Leroy R. Perry, Jr. | 1989-11-07 |
| 4838907 | High efficiency industrial vacuum cleaner | — | 1989-06-13 |