Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4473923 | Vacuum cleaning tool adapter with electrical control means | Robert E. Stevens, Joe L. Byers | 1984-10-02 |
| 4330498 | Pedestal liner for a railway vehicle and method of making same | Donald L. Kleykamp | 1982-05-18 |
| 4239007 | Railway truck pedestal liner | Donald L. Kleykamp | 1980-12-16 |