Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887516 | Clamping arrangement for diaphragm piston assembly | Theodore B. Hill | 1989-12-19 |
| 4583790 | Empty/load brake control system | — | 1986-04-22 |
| 4577870 | O-ring seal in channel with fluid pressure equalization means | Theodore B. Hill | 1986-03-25 |
| 4456219 | Spring-locking handle mechanism | Gene S. Ferry | 1984-06-26 |
| 4215881 | Hose coupling | William K. Mong | 1980-08-05 |