Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842219 | Tether attachment device | Ronald L. Boies | 1989-06-27 |
| 4842221 | Lightning hardened tether cable and an aerostat tethered to a mooring system therewith | Glenn R. Beach, Myron S. Wheeler | 1989-06-27 |