Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877117 | Rotational control apparatus | Virgil Schieffer, Robert C. Bredt | 1989-10-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877117 | Rotational control apparatus | Virgil Schieffer, Robert C. Bredt | 1989-10-31 |