Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5036846 | Crew oxygen mask with pneumatic comfort adjustment | Charles C. Aulgur, Thomas K. McDonald, Alan E. Kidd | 1991-08-06 |
| 4915106 | Crew oxygen mask with pneumatic comfort adjustment | Charles C. Aulgur, Thomas K. McDonald, Alan E. Kidd | 1990-04-10 |
| 4460152 | Hand pump with automatic lock-out | James J. Hammer | 1984-07-17 |