Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4556863 | Emergency light switch | Charles J. Devitt, LeRoy M. Freeman | 1985-12-03 |
| 4272042 | Airship and associated apparatus and method for anchoring same | — | 1981-06-09 |
| 4238095 | Method of and apparatus for anchoring airships and propulsion means for airships | — | 1980-12-09 |
| 4228416 | Composite magnet and magnetic anchoring | — | 1980-10-14 |