Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673512 | Portable masonry pier | — | 1997-10-07 |
| 5667137 | Ice and snow-free snow making tower structure | — | 1997-09-16 |
| 5630633 | Shovel with driven tiltable blade | Charles Bihun, Jr. | 1997-05-20 |
| 5628456 | Below surface control system for snow making devices | — | 1997-05-13 |