Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4585390 | Vane retaining means | George M. Pirtle | 1986-04-29 |
| 4221542 | Segmented blade retainer | Robert D. Gravitt, Robert Roth | 1980-09-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4585390 | Vane retaining means | George M. Pirtle | 1986-04-29 |
| 4221542 | Segmented blade retainer | Robert D. Gravitt, Robert Roth | 1980-09-09 |