Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4549429 | Method of checking for hydraulic leakage | — | 1985-10-29 |
| 4244405 | Tree shear head and controls therefor | Eugene S. Zirker, Andrew Paul Redman, Victor C. Pierrot, III, Alvin L. Menzel | 1981-01-13 |