Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4914923 | Method of covering artificial alpine- or nordic-skiing tracks with snow and means for implementing the method | Max Duplan | 1990-04-10 |
| 4717072 | Sequential valve and drain for snow gun | — | 1988-01-05 |
| 4353504 | High pressure snow gun | Max Duplan | 1982-10-12 |