Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6749248 | Trailer cover | Edward J. Votruba, Michael H. Dilgard, David L. Simpson, Thomas F. Bone | 2004-06-15 |
| 6722727 | Trailer | Edward J. Votruba, Michael H. Dilgard, David L. Simpson, Thomas F. Bone | 2004-04-20 |
| 6695391 | Trailer | Edward J. Votruba, Michael H. Digard, David L. Simpson, Thomas F. Bone | 2004-02-24 |