Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5887885 | Self-locking trailer hitch assembly | Hugh M. Trautmann | 1999-03-30 |
| 4209184 | Self-locking trailer hitch assembly | — | 1980-06-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5887885 | Self-locking trailer hitch assembly | Hugh M. Trautmann | 1999-03-30 |
| 4209184 | Self-locking trailer hitch assembly | — | 1980-06-24 |