Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5283936 | Apparatus for removing press fit pins | James Pickles | 1994-02-08 |
| 5249360 | Method of reconditioning valves | Wade A. Kunis | 1993-10-05 |
| 5246502 | Method of cleaning valve bushings | Thomas M. Hartzell, Ronald M. Markos, Richard H. Gumbert | 1993-09-21 |
| 5211451 | Adjustable regulating device for a railway locomotive brake valve apparatus | Thomas M. Hartzell | 1993-05-18 |
| 5146939 | Valve bushing cleaning device and method of cleaning valve bushings | Thomas M. Hartzell, Ronald M. Markos, Richard H. Gumbert | 1992-09-15 |
| 5129145 | Valve reconditioning process | Wade A. Kunis | 1992-07-14 |