Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859143 | Stiffening ring for a stator assembly of an axial flow rotary machine | Arthur W. Lucas, Jr., Peter A. Faucher | 1989-08-22 |
| 4820117 | Crossed I-beam structural strut | Philip F. Kravsow | 1989-04-11 |