Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4270340 | Rotating ring yarn spinning or twisting apparatus and method | James E. Donnelly | 1981-06-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4270340 | Rotating ring yarn spinning or twisting apparatus and method | James E. Donnelly | 1981-06-02 |