Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4750691 | Retractable aircraft hoist | Richard H. Hollrock, Alvin Kagan | 1988-06-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4750691 | Retractable aircraft hoist | Richard H. Hollrock, Alvin Kagan | 1988-06-14 |