Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844817 | Low pressure hydrocyclone separator | Elwyn Shimoda, James E. Stolhand | 1989-07-04 |
| 4798142 | Rapid buring propellant charge for automobile air bag inflators, rocket motors, and igniters therefor | J. B. Canterberry | 1989-01-17 |