Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852231 | Piston wrist pin installation and removal device and method of using | — | 1989-08-01 |
| 4800903 | Nicotine dispenser with polymeric reservoir of nicotine | Jon P. Ray, Michael P. Ellis, Ronald G. Oldham | 1989-01-31 |