Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874408 | Liquid drain assembly | — | 1989-10-17 |
| 4865815 | In-line compressed air carbon monoxide filter | Charles E. Martin | 1989-09-12 |
| 4810272 | Air inlet valve arrangement for pneumatic equipment | — | 1989-03-07 |