Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354342 | Twister ring and traveler | Robert M. Rumsey | 1982-10-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354342 | Twister ring and traveler | Robert M. Rumsey | 1982-10-19 |