Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4226079 | Heather yarn made by combining polyester and polyamide yarns | Ralph C. Wirsig | 1980-10-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4226079 | Heather yarn made by combining polyester and polyamide yarns | Ralph C. Wirsig | 1980-10-07 |