Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5437251 | Two-way rotary supercharged, variable compression engine | Hazel L. Halfman | 1995-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5437251 | Two-way rotary supercharged, variable compression engine | Hazel L. Halfman | 1995-08-01 |