Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34109 | Propeller blade | Robert J. Gornstein | 1992-10-20 |
| 4844698 | Propeller blade | Robert J. Gornstein | 1989-07-04 |
| 4298076 | Chuck and wrench assembly for raise drill apparatus | Jack O. Winsor | 1981-11-03 |