Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D274898 | Convertible trailer for use with runners or wheels | — | 1984-07-31 |
| D263979 | Slow pitch softball pitcher's aid | Walter D. Van Gerpen | 1982-04-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D274898 | Convertible trailer for use with runners or wheels | — | 1984-07-31 |
| D263979 | Slow pitch softball pitcher's aid | Walter D. Van Gerpen | 1982-04-20 |