Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33059 | Partially oriented nylon yarn and process | Edward W. Chilvers, Jr., Walter J. Nunning, John H. Southern | 1989-09-19 |
| 4852601 | Thermally-activated drip valve | — | 1989-08-01 |
| 4809727 | Thermally-activated drip valve | — | 1989-03-07 |